Updated on 2024/04/30

写真a

 
SHIGEMATSU Takaaki
 
Organization
vice president
Title
vice president
Affiliation
President etc.
Affiliation campus
Sugimoto Campus

Position

  • 2024.04 - Now

  • Graduate School of Engineering Division of Urban Engineering 

    Professor  2022.04 - 2024.03

  • School of Engineering Department of Urban Design and Engineering 

    Professor  2022.04 - 2024.03

Degree

  • Doctor of Engineering ( Osaka City University )

  • 修士(工学) ( Osaka City University )

Research Areas

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Hydroengineering  / coastal engineering

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Hydroengineering  / 環境流体輸送

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Hydroengineering  / 都市防災工学

  • Environmental Science/Agriculture Science / Environmental load and risk assessment  / Remediation technology of envi

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Disaster prevention engineering

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering  / Computational Fluid Mechanics

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Research Interests

  • 固液混相流

  • 都市防災工学

  • 内湾環境工学

  • 波力発電

Research Career

  • 防波堤を利用した波力発電システムの開発

    波力発電,防波堤,サボニウス水車  Joint Research in Organization

    2010.04 - Now 

  • Falling and dispersion behavior of particles dumped into wat

    Discrete Element Method, Computational Fluid Mechanics, particles cluster  Individual

    1983.04 - Now 

  • 多孔質体による乱流生成・伝播に関する研究

    多孔質体,乱流,流れの可視化  Joint Research in Japan

    2000 - Now 

  • Recovery of water quality in tidal region of river through urban area

    Individual

    2006.04 

  • Effect of silt protector on diffusion ofmuddy water

    silt protector, prevention of diffusion  Joint Research in Japan

    1900.04 

  • A study on generation and propagation of landslide-generated tsunami

    Individual

    1900.04 

  • Development of 3-D numerical wave tank

    Individual

    1900.04 

  • Development of a breakwater for generating vertical circulationflow

    Individual

    1900.04 

  • 3D liquid-solid flows

    multiphase flow, water surface deformation  Individual

    1900.04 

  • Development of flexible jetty for promotion of current in en

    Environmental recovery technol, jetty  Joint Research in Japan

    1900.04 

Professional Memberships

  • 土木学会

      Domestic

  • 日本混相流学会

      Domestic

  • 日本沿岸域学会

      Domestic

  • 環境アセスメント学会

  • 海洋気象学会

      Domestic

  • 日本自然災害学会

      Domestic

  • PIANC JAPAN

      Domestic

  • 可視化情報学会

      Domestic

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Committee Memberships (off-campus)

  • 大阪府大阪湾沿岸海岸保全基本計画審議会委員   大阪府  

    2023.11 - 2024.11 

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    会長

  • 理事   環境アセスメント学会  

    2022.04 - Now 

  • 神戸港における生物共生方策検討会 委員・座長   一般社団法人みなと総合研究財団  

    2021.05 - Now 

  • 委員   熊本大学国際先端科学技術研究機構テニュアトラック教員評価委員会  

    2020.08 - 2020.10 

  • 評議員   環境アセスメント学会  

    2020.07 - Now 

  • 副委員長   土木学会論文賞選考委員会  

    2020.06 - 2021.06 

  • 地域活動賞選考委員会委員   土木学会関西支部  

    2020.06 - 2021.05 

  • 地域活動賞選考委員会   土木学会関西支部   

    2020.05 - 2022.05 

  • 委員   土木学会論文賞選考委員会  

    2019.06 - 2021.06 

  • 理事   土木学会  

    2019.06 - 2021.05 

  • 幹事長   土木学会関西支部  

    2019.05 - 2021.05 

  • 評議員   日本混相流学会  

    2019 - Now 

  • 理事   日本沿岸域学会  

    2017.07 - 2021.06 

  • 理事   大阪湾環境再生研究・国際人材育成コンソーシアム  

    2016.07 - Now 

  • 理事   一般社団法人生態系工学研究会  

    2011.06 - Now 

  • 幹事長   土木学会関西支部:東北地方太平洋沖地震による津波災害特別調査研究委員会  

    2011.05 - 2013.05 

  • 東北地方太平洋沖地震による津波災害特別調査研究委員会 幹事   土木学会・関西支部  

    2011.05 - 2013.05 

  • 委員   近畿地方整備局港湾空港部門総合評価委員会委員  

    2011.04 - Now 

  • 委員   再生水を活用した都市の水環境改善検討委員会  

    2011.04 - 2012.03 

  • 委員長   土木学会海岸工学委員会沿岸域研究連携推進小委員会  

    2009.12 - 2019.06 

  • 委員長   日本沿岸域学会・会誌編集委員会  

    2007.04 - 2013.03 

  • 委員   土木学会・海岸工学委員会・論文編集小委員会委員  

    2003.06 - Now 

  • 幹事   土木学会 海岸工学委員会  

    2000.06 - 2019.06 

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Education

  • Osaka City University   Master's Course   Graduated/Completed

    - 1988

  • Osaka City University    

    - 1986

Papers

  • 3-D SIMULATION OF FLOW THROUGH A POROUS BODY COMPOSED SPHEROIDS

    Ena TANAKA, Takaaki SHIGEMATSU, Sota NAKAJO

    79 ( 17 )   2023.11( ISSN: 2436-6021

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    Authorship:Corresponding author   International / domestic magazine:Domestic journal  

  • 南海トラフ巨大地震津波による大阪市域の河川沿いにおける土砂堆積の傾向に関する研究 Reviewed

    Nicolas Eko Saputra、重松孝昌

    都市防災研究論文集   10   30 - 35   2023.11( ISSN:2189-0536

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    Authorship:Corresponding author   International / domestic magazine:Domestic journal  

  • 3-D Simulation of Fluid Flows through Circular Cylinders Using the Immersed Boundary Method Invited Reviewed

    Ryoto MIYAKE and Takaaki SHIGEMATSU

    Japanese Journal of Multiphase Flow   37 ( 3 )   292 - 299   2023.09( ISSN: 1881-5790

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)  

  • Fundamental Study on the Effect of Pore Structure on the Flow through Porous Media by Numerical Calculations Invited Reviewed

    4   432 - 439   2022.10( ISSN:1881-5790

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.3811/jjmf.2022.024

  • AN EXPERIMENTAL STUDY ON THE EFFECTS OF CHARACTERISTICS OF PORE IN POROUS MEDIA IN UNIDIRECTIONAL FLOW ON THE WAKE FLOW Reviewed

    78 ( 2 )   I_625 - I_630   2022.07

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.2208/kaigan.78.2_I_625

  • 一方向流中に設置した単一および複数楕円体の後流域特性に関する実験的研究 Reviewed

    山村 雄司, 重松 孝昌, 中條 壮大

    日本混相流学会・混相流   36 ( 2 )   229 - 236   2022.06( ISSN:0914-2843

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.3811/jjmf.2022.018

  • 3D Simulation on the Characteristics of Flow around Oscillaing Cylinders Reviewed

    36 ( 2 )   247 - 254   2022.06( ISSN:0914-2843

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    Authorship:Corresponding author   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.3811/jjmf.2022.020

  • ESTIMATION OF WAVE SURFACE MOTION FROM WATER PRESSURE DATA MEASURED IN THE CHAMBER OF A VERTICAL SLOTTED BREAKWATER Reviewed

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   78 ( 2 )   I_367 - -I_372   2022.06( ISSN:2185-4688

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.2208/jscejoe.78.2_I_367

  • A comparative method for evaluating ecosystem services from the viewpoint of public works Reviewed

    Tomonari Okada, Yugo Mito, Kanae Tokunaga, Hiroaki Sugino, Takahiro Kubo, Yoshihiro Akiyama, Toru Endo, Sosuke Otani, Susumu Yamochi, Yasunori Kozuki, Takayuki Kusakabe, Koji Otsuka, Ryoichi Yamanaka, Takaaki Shigematsu, Tomohiro Kuwae

    Ocean & Coastal Management/Elsevier   212 ( 15 )   2021.10

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work   International / domestic magazine:International journal  

    Nature-based solutions (NbS), such as the implementation of environmental
    conservation and restoration as public works projects, require accurate and cost-effective assessments of the values related to the projects. The values should
    represent collective ecosystem services, individual services such as food provision and water purification, and other intangible services. To comprehensively assess such services, we proposed a novel method, which we call the comparative evaluation method. Our method is able to assess the value of each service category of an NbS project from a single questionnaire survey. Survey participants are asked to compare values of multiple services having anchoring prices. Our method determines the permissible economic value of
    environmental public works (PEP) in response to the
    quantity of service. The questionnaire results used for analysis are limited to those from respondents who made their PEP evaluation on the basis of their consideration of the appropriate expenditure of taxes. In addition, the method controls for the effect of
    the satisfaction that a person experiences from doing good deeds to reduce an overestimation of the values of services. Moreover, PEPs are not influenced by the
    respondent’s annual income, age, sex, or educational background , and are based on personal values. Applying this new method, we surveyed residents of the watersheds of Tokyo Bay and Osaka Bay and evaluated nine ecosystem services. Overall, our new method is shown to be an effective method for evaluating the ecosystem services of NbS projects from the viewpoint of public works.

    DOI: https://doi.org/10.1016/j.ocecoaman.2021.105848

  • A Study on Introduction of亜Periodic Boundary COんぢちおんとPorous Media Flow Model Reviewed

    77 ( 2 )   I_745 - I_750   2021.10

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • A Proposal of the Calculation Technique for Flow Around a Circular Cylinder Through the Air-Water Interaface without Tracking the Interface Reviewed

    77 ( 2 )   I_751 - I_756   2021.10

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • Green port structures and their ecosystem services in highly urbanized Japanese bays Reviewed

    Tomonari Okada, Yugo Mito, Yoshihiro Akiyama、Kanae Tokunaga, Hiroaki Sugino, Takahiro Kubo, Toru Endo, Sosuke Otani, Susumu Yamochi, Yasunori Kozuki, Takayuki Kusakabe, Koji Otsuka , Ryoichi Yamanaka, Takaaki Shigematsu, Tomohiro Kuwae

    Coastal Engineering Journal, Taylor & Francis   2021.04

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Green port structures (i.e. green infrastructure in ports and harbors) featuring habitats for marine organisms have been promoted in Japan as part of a comprehensive policy to reduce the environmental impact of ports and carry out habitat conservation, restoration, and creation. In this study, we evaluated the ecosystem services provided by green port structures in two highly urbanized bays (Tokyo Bay and Osaka Bay) in Japan. Our results show that the provision of some ecosystem services can be limited by circumstances particular to ports and other areas with restricted access. In the case of green port structures that have strong usage restrictions, for example, cultural services can only be provided if relevant authorities are prepared to conduct public events while ensuring participant safety. On the other hand, green port structures with weak usage restrictions are often equipped with incidental facilities such as parking lots and restrooms; these facilities can enhance the provision of cultural services (e.g. recreation and environmental education). Green port structures in highly urbanized bays often have usage restrictions, but their proximity to large populations means that they can potentially provide numerous ecosystem services. However, our study shows that appropriate management goals, such as protecting species and ensuring healthy habitats, are needed to maintain the value of these services in highly urbanized and eutrophic bays.

    DOI: 10.1080/21664250.2021.1911194

  • 縦スリット直立消波工遊水質室における水面変動および流速の現地計測 Reviewed

    重松孝昌,田口恵美,加藤健司,脇本辰郎,吉岡真弥

    土木学会論文集B3(海洋開発)   77 ( 2 )   I_271 - I_276   2021( ISSN:2185-4688

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: https://doi.org/10.2208/jscejoe.77.2_I_271

  • Development of wave power generation system using a slit-type breakwater (Power improvement of bending plate type generator) Reviewed

    Transactions of the JSME   86 ( 892 )   20-00247 - 20-00247   2020.12( ISSN:2187-9761

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: 10.1299/transjsme.20-00247

  • WAVE PERIOD EFFECTS ON A FLOW AND SHEAR VELOCITY AROUND SUBMERSED POROUS MEDIA Reviewed

    Sota NAKAJO, Izumi KOZUKA, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   76 ( 2 )   I_745 - I_750   2020.11

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • AN EXPERIMENTAL STUDY ON EFFECT OF ANGLE OF ATTACK OF A PROLATE SPHEROID ON FLOW CHARACTERISTICS IN THE WAKE Reviewed

    Yuji YAMAMURA, Takaaki SHIGEMATSU, Sota NAKAJO

    76 ( 2 )   I_751 - I_756   2020.11

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Details of a velocity field around a prolate spheroid in a steady flow with different angles of attack were investigated by carrying out a hydraulic experiment using the PTV technique. It was found that characteristics of the vortex in the wake of the prolate spheroid were different depending on the angle of attack. It was clearly found that the velocity field changes significantly in the wake. That is to say that there were some areas with strong and weak turbulence and that also some areas with a certain periodic and unclear periodic velocity change with significant change. It was clear that these characteristics depend on the angle of attack of the spheroid. Further, it was confirmed that the distribution of the turbulence intensity was different between the horizontal and vertical components, and that the distribution area of the shear velocity was almost consistent with that of the horizontal component of the turbulence intensity.

  • A STUDY ON EVALUATION OF ROTATION PERFORMANCE OF SAVONIUS TURBINE UNDER THE WAVE AND CURRENT CONDITION IN A BAY Reviewed

    Rioko HIROTA, Takaaki SHIGEMATSU, Kenji KATOH, Sin’ya YOSHIOKA, Tatsuro WAKIMOTO

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   76 ( 2 )   I_138 - I_143   2020

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • On the effect of aspect ration of component member on the flow through porous media Reviewed

    Tomoya Watanabe, Sota Nakajo, Takaaki Shigematsu

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   75 ( 2 )   I_943 - I_948   2019.10( ISSN:1883-8944

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • Relationship between splashing and wave deformation around a circular cylinder in front of vertical wall Reviewed

    Takihito Kamikawa and Takaaki Shigematsu

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   75 ( 2 )   I_1 - I_6   2019.10( ISSN:1883-8944

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: https://doi.org/10.2208/kaigan.75.I_1

  • PRACTICAL FORMULA FOR EFFECTIVE HEIGHT OF IMPERMEABLE HANGING CURTAIN IN STEADY WATER FLOW Reviewed

    Masahide TAKEDA, Takaaki SHIGEMATSU, Yoshinosuke KURAHARA, Chisato HARA, Yamato NISHIYAMA

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   75 ( 2 )   I_409 - I_414   2019( ISSN:2185-4688

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    DOI: https://doi.org/10.2208/jscejoe.75.I_409

  • A STUDY ON THE EFFECT OF SLIT SPECIFICATIONS ON LOCAL SCOURING PROPERTIES OF THE PILE-SUPPORTED WAVE ABSORBING BREAKWATER Reviewed

    74 ( 2 )   I_835 - I_840   2018.11

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

  • A Study on the Scour Characteristics of a Lower Vertical Plate in Wave Field Reviewed

    Yusuke NAKAHARA, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   74 ( 2 )   I_829 - I_834   2018.11( ISSN:1883-8944

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    Since local scouring occurring at the foot of a flow-sediment control structure impairs the stability of the structure itself, it is required to take some measures by predicting the scale of the scouring. In this study, the hydraulic experiment was carried out to investigate the effect of the vertical plate on the scouring charactersitics by observing the flow and sand migration phenomena in the vicinity of the vertical plate on the flat sand bed in detail. Based on the experimental result, the mechanism of local scouring was intellectualized and factors affect the characteristics of the local scouring were considered.

    DOI: https://doi.org/10.2208/kaigan.74.I_829

  • QUANTIFICATION OF ECOSYSTEM SERVICES AT TIDAL FLATS IN OSAKA BAY USING TIDAL FLAT HEALTH INDEX - CHARACTERIZATION OF THE TIDAL FLATS BY COMPARISON BETWEEN TOKYO BAY AND OSAKA BAY - Reviewed

    Tomonari OKADA, Yugo MITO, Takanori SUGANO, Toshiyuki TAKAHASHI, Yo-shihiro AKIYAMA, Hiroshi KUROIWA, Toru ENDO, Sosuke OTANI, Susumu YAMOCHI, Yasunori KOZUKI, Takayuki KUSAKABE, Koji OTSUKA, Ryoichi YAMANAKA, Takaaki SHIGEMATSU, Kazuyuki NAKANO, Makoto USHIRO and Tomohiro KUWAE

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   74 ( 2 )   I_1417 - I_1422   2018.11( ISSN:1883-8944

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    In this study, the tidal flat health index (THI) was applied to four tidal flats in Osaka Bay to confirm the versatility of THI and understand the features in each tidal flat by comparing them with four tidal flats in Tokyo Bay. The reference values (the best score of each health index) in the services, such as food supply and water purification, related to the ecosystem states, in Osaka Bay were almost equal to those of Tokyo Bay. The reference values in the services, such as tourism and recreation, influenced by the regional population, were higher in Tokyo Bay than in Osaka Bay. However, the reference value of education was higher in Osaka Bay compared to Tokyo Bay, suggesting that environmental learning is active in Osaka. Principal component analysis of the nine services in the eight tidal flats in Osaka Bay and Tokyo Bay revealed that 74% of the THI scores could be explained by 2 components: "utilization of people" and "biodiversity".

    DOI: https://doi.org/10.2208/kaigan.74.I_1417

  • Basic Study on the Characteristics of Microscopic Flow Nearby Porous Media in Wave Field Reviewed

    Sota NAKAJO, Izumu KODUKA, Gozo TSUJIMOTO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   74 ( 2 )   I_991 - I_996   2018.11( ISSN:1883-8944

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    Authorship:Last author   Publishing type:Research paper (scientific journal)   Kind of work:Joint Work   International / domestic magazine:Domestic journal  

    DOI: https://doi.org/10.2208/kaigan.74.I_991

  • An Experimental Study on the Interaction between Oscillatory Flow and Idealized Porous Bed Reviewed

    Takaaki Shigematsu, Sota Nakajo, and Yuya Okada

    Journal of Coastal Research   85 ( 2 )   981 - 985   2018.05

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Kind of work:Joint Work   International / domestic magazine:International journal  

    The microscopic structures of over and inside flow of a porous medium placed in oscillatory flow was measured by the Particle Tracking Velocimetry with the refractive index matching method in order to investigate interaction between them. The strong shear flow was observed over the surface of the porous medium and the thickness of shear flow varied with the phase of the oscillatory flow. It was found that the thickness of non-dimensional shear flow was almost constant and that it did not depend on the Reynolds number. It was found that the thickness of non-dimensional shear flow was almost constant and it independented with the Reynolds number. Besides, it was also found that the phase difference between flows over and inside the porous bed occurred. The characteristics of the spatial variance of velocity components were shown in detail with the time phase variance. Further, the flow properties around the particle constitutes porous body were measured and investigated in detail.

    DOI: https://doi.org/10.2112/SI85-197.1

  • A FUNDAMENTAL STUDY ON THE CHARACTERISTICS OF A LOCAL SCOUR UNDER A VERTICAL PLATE AND ITS COUNTERMEASURE IN WAVE FIELD Reviewed

    NAKAHARA Yusuke, SIGEMATSU Takaaki, YAMANO Takashi

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   74 ( 2 )   I_814 - I_819   2018( ISSN:2185-4688

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    Authorship:Corresponding author   Publishing type:Research paper (scientific journal)   International / domestic magazine:Domestic journal  

    Since the local scour, which occurs at the foot of the structure for controlling the drift sand and the flow, greatly affect the stability of the structure, the appropriate countermeasure should be taken based on the prediction of scale of the scour. In this study, the flow and sand migration phenomena formed in the vicinity of the vertical flat plate were observed in detail by using a high speed camera and the effect of the height of the vertical plate on the characteristics of the local scour at the foot of the plate was investigated in hydraulic experiment. On the basis of the observation the mechanisms of the occurrence of scour was inferred. Further the countermeasures of penetration of the vertical plate into sand bed and embankment at the foot of the vertical plate were proposed and the effectiveness of them were investigated.

    DOI: 10.2208/jscejoe.74.I_814

    CiNii Article

  • Development of a Wave Power Generation System Using a Slit Type Breakwater (Performance of bending plate type generator in 1/5 scale experiment) Reviewed

    Tatsuro WAKIMOTO, Kenji KATOH, Takaaki SHIGEMATSU, Shin’ya YOSHIOKA

    Advanced Experimental Mechanics   3   98 - 103   2018( ISSN:2189-4752

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    Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    A new wave power generation system is proposed to be installed in a vertical slit type breakwater. The merits of the system are as follows: (i) no occupation of sea surface, (ii) low cost maintenance, and (iii) high energy efficiency by using accelerated flow from the slit of breakwater. In this study, a new, higher efficiency generator is proposed. An elastic rectangular plate connected to a wheel and axle via a wire is set in the water chamber. When the wave drag bends the plate, tension appears in a wire causes rotation of a wheel connected to a generator. To estimate the power of the proposed system at full scale, the wave energy flowing into the breakwater was simulated numerically. The results show that more than 60% of the wave energy is collected in the water chamber behind the slit with a small opening ratio. Although the output power of the bending plate is rather small, the power per unit of occupied sea area is somewhat superior to that of existing systems.

    DOI: https://doi.org/10.11395/aem.3.0_98

  • 降雨予測の確からしさに関する基礎的研究 Reviewed

    重松孝昌,中條壮大

    大阪市立大学都市防災教育研究センター,都市防災研究論文集   4   15 - 18   2017.11( ISSN:2189-0536

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    Authorship:Lead author   Publishing type:Research paper (scientific journal)   Kind of work:Joint Work  

    本研究では,大阪市立大学工学部G棟屋上に雨量計を設置して降水量を計測し,大阪気象台および堺地方気象観測所における降水観測結果と比較することによって,空間的な降水量の偏差特性について検討した.また,高解像度降水ナウキャストの画像データを自動で取得するシステムを構築し,予測情報を収集して予測降水量の確からしさの検討に資するデータをアーカイブするシステムを濃く馳駆した.

  • A Study on a Numerical Model of Two-Phase Gas-Liquid Flow Induced by a Moving Solid With High Accuracy Reviewed

    Hiroshi MATSUMOTO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   73 ( 2 )   I_865 - I_870   2017.10( ISSN:1883-8944

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    In this study, a numerical model for calculation of fluid motion induced by an object penetrating the gas-liquid interface by combining the Immersed Boundary Method and the Level Set Method was presented. A new method of satisfying the boundary condition at the Lagrange points near the gas-liquid interface with high accuracy is described. After validating of tracing method of the gas-liquid interface by calculated result on sloshing in rectangular tank, it is presented that calculated result of the Strouhal number and distribution of time-mean velocity in wake of a circular cylinder agrees to experimental result with reasonable accuracy. Finally, calculated results of vortex pattern induced around a horizontally-oscillating vertical circular cylinder in stationary fluid under the condition of the Keulegan-Carpenter number = 9 and the Reynolds number = 1,000 is presented.

    DOI: https://doi.org/10.2208/kaigan.73.I_865

  • A Numerical Study on Effect of Inducing Slow Flow on the Bottom Sediment Environment in Closed Water Area Reviewed

    Hiroaki SUKENAGA, Takaaki SHIGEMATSU, Akio SOHMA, Naotaka YOSHIMURA, Ken HIRAI

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   73 ( 2 )   I_1333 - I_1338   2017.10( ISSN:1883-8944

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    It is thought that even very slow flow may be useful for environmental improvement of closed watersheds. This study aims to quantitatively evaluate seawater conduction to improve the environment of the Doi River, which is a part of the old moat and therefore is a river without flow. The field survey was carried out. After parameter tuning based on the field survey, a numerical calculation using the ecological model which can treat circulation of nutrients, organic carbon, oxygen, oxygen demand units and so on. It is presented that the effect of promoting slow flow and oxygen concentration on the profile of nutrient and oxygen demand units and oxygen in the sediment material.

    DOI: https://doi.org/10.2208/kaigan.73.I_1333

  • A Study on Splash Generated by Breaking Wave Acting on a Vertical Wall Reviewed

    Yuki YASUHIRA, Takaaki SHIGEMATSU, Masahide TAKEDA

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   73 ( 2 )   I_835 - I_840   2017.10( ISSN:1884-2399

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    In order to take countermeasures against salt damage of pier superstructure economically and efficiently, it is indispensable to clarify the wave conditions of splash generation at the vertical wall, and to grasp the characteristics of the splash. Using a series of images capturing splash generation process by a high speed camera, characteristices of splash such as the number of droplet, diameter and splashing velocity of each splashing speed, and so on are measured by the PIV and PTV technique and the relationship between splash and wave characteristics was investigated.

    DOI: https://doi.org/10.2208/kaigan.73.I_835

  • On the Effects of Absence of a Member of Porous Media Based on Microscopic Flow Simulation Reviewed

    Sota NAKAJO, Yuya WATANABE, Takaaki SIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   73 ( 2 )   I_877 - I_882   2017.10( ISSN:1884-2399

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    Simulation results of microscopic flow through porous media used Immersed Boundary method have been validated by comparison with previous experimental studies about the macroscopic pressure drop during passing porous media, the drag force acting on sphere body and so on. The constant rate of pressure drop in case of regular arrangement of porous media members shows suitability of conventional macroscopic method. However, the heterogeneity of pores caused by absence of a member of porous media would induce the difficulty of application of the conventional model. We discussed about the evidences of its difficulty by showing the pressure drop distribution inside porous media, the drag coefficient acting on each porous members, and the distribution of sectional average of intrinsic velocity in porous media.

    DOI: https://doi.org/10.2208/kaigan.73.I_877

  • A STUDY ON PROPERTIES OF TURBULENT FLOW INDUCED BY AN HORIZONTALLY-OSCILLATING CIRCULAR CYLINDER Reviewed

    Hiroshi MATSUMOTO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   72 ( 2 )   I_919-I_924 - I_924   2016.11( ISSN:1883-8944

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    The flow induced by an horizontally-oscillating circular cylinder in stationary fluid was measured by the PTV technique and the relationship of turbulent flow and mean flow was investigated on the basis of the measured data. Transverse velocity of time-mean flow was large in the area that vortexes shed from a circular cylinder distributed. Although turbulent intensity was small in the area that vortexes shed from a circular cylinder did not distribute, the one was large in the area that vortexes shed from a circular cylinder distributed. In the area that time-mean turbulent energy was large, transverse velocity of time-mean flow was also large. It was suggested that turbulence induced by vortexes shed from a circular cylinder contributed to occurrence of mean flow generated around a circular cylinder.

    DOI: https://doi.org/10.2208/kaigan.72.I_919

  • A Numerical Study on Inundatioin Properties in Maritaime Urban Space Induced by Severe Storm Surge and River Flooding Reviewed

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   72 ( 2 )   I_1645 - I_1650   2016.11( ISSN:1884-2399

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    A numerical simulation model, which can calculate spread of inundation area on the ground and in the space of subway track by a severe storm surge and river flooding simultaneously, is developed and described in detail. Based on the calculation results, quantitative analysis of characteristics of simultaneous occurrence of inundation due to storm surge and river flooding are presented. Moreover, evacuation activities appropriate to occation of water disaster are also reffered.

    DOI: https://doi.org/10.2208/kaigan.72.I_1645

  • Performance Evaluation of a Wave Generation System Using Vertically-slotted Breakwater for Irregular Wave Reviewed

    Shinji MORIMOTO, Takaaki SHIGEMATSU, Daichi UEJIMA, Kenji KATOH, Tatsuro WAKIMOTO, Sin'ya YOSHIOKA

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   72 ( 2 )   I_1537-I_1542   2016.11( ISSN:1883-8944

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    Authors have been developed a wave generation system using the vertically slotted breakwater and savonius-type water mills for several years. It has been already found from a series of a hydraulic experiment that the wave generation system have a superior wave attenuation function for wide range wave frequency rather than the present breakwater and that rotational velocity of a water mill can be estimated by using water velocity through a slit. However, the knowledge for the irregular wave has never been obtained at all. Hence, in order to obtain the knowledge for the irregular wave, hydraulic experiment was carried. It is found out that attenuation fuction will be superior by introducing water mills into the chamber. The estimation formula of the power of a water mill from waves is also introduced.

    DOI: https://doi.org/10.2208/kaigan.72.I_1537

  • A STUDY ON WAVE ABSORPTION AND FLOW CHARASTARISTICS IN THE VISINITY OF A PERMIABLE BREAKWATER CONSISTS OF VERTICALLY-SLOTTED WALLS Reviewed

    YAMANO Takashi, NAKAHARA Yusuke, SHIGEMATSU Takaaki, FUJIWARA Ryuichi

    Japan Society of Civil Engineers, Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   72 ( 2 )   I_901 - I_906   2016( ISSN:1883-8944

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    The measure against erosion of sandy beaches on the ocean is one of urgent national issues in view of the predicted sea level rise. Some of the authors have been studied a permeable breakwater with slotted walls supported by piles for last several years. Although the characteristics of wave attenuation of the breakwater with vertical slits has been examined by numerical calculation so far, enough validity has not been verified yet. In this study, comparison between calculated results by CADMAS-SURF/3D and experimental results on wave attenuation and flow in the visinity of the permeable breakwater is presented. As a result, it is shown that the CADMAS-SURF/3D is a useful tool to design the permeable breakwater in practical use. According to the results of the calculation and PIV measurements, it is implied that upward flow in front and back of the breakwater will be direct relation with local scour and the vertical circulation flow in the chambers of the permeable breakwater will affect sand transfer.

    DOI: 10.2208/kaigan.72.I_901

    CiNii Article

  • Estimation Method on Power Transduced from Waves by a Watermill Installed in a Chamber of a Vertical-slotted Breakwater Reviewed

    Shinji MORIMOTO, Takaaki SHIGEMATSU, Daichi UEJIMA, Kenji KATOH, Tatsuro WAKIMOTO, SHIN'ya YOSHIOKA

    Journal of Japan Civil Engineers, Ser. B2 (Coastal Engineering)   71 ( 2 )   I_1567 - I_1572   2015.10( ISSN:1883-8944

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    Renewable energies as substitute energy of nuclear power get much attention in not only Japan but also the world. Authors focus on the wave energy and have developed a wave power generation system using a vertical slotted breakwater with watermills installed in the chamber. From view point of the practical realization, it is necessary to estimate electrical power obtained by the watermill and power generation cost with enough accuracy as possible as we can. In the previous work, authors developed the experimental formulation between rotation rate of watermill and velocity amplitude through a vertical slit of the breakwater. In this paper, effect of scale of laboratory experiment was investigated through a series of experiments in different scale. Based on the experimental results, the formulation was modified so that the power obtained from wave by a watermill may be obtained with enough accuracy.

  • Investigation on Criterion of Splash Generation by Wave Acting on Coastal Structure Reviewed

    Masahide TAKEDA, Yuki YASUHIRA, Takaaki SHIGEMATSU, Muneo TSUDA, Takashi HABUCHI, Takahiko AMINO

    Journal of Japan Society of Civil Engineers, Sr. B2 (Coastal Engineering)   71 ( 2 )   I_853 - I_858   2015.10( ISSN:1884-2399

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    In this study, we aimed to derive the criterion of splash generation by wave acting on an impermeable vertical wall using hydraulic experiments and numerical simulations, in order to estimate the salt supply to port and harbor structure in close proximity to the surface of the sea. We found that the criterion of splash generation can separate into two different forms of splash generation using the maximum of vertical acceleration of water mass rising along vertical wall.

    DOI: https://doi.org/10.2208/kaigan.71.I_853

  • A Study on Aeration Capacitance of a Verticall-slotted Breakwater with Watermills iin the Chamber Reviewed

    Shinji MORIMOTO, Takaaki SHIGEMATSU, Kenji KATOH, Tatsuro WAKIMOTO, Shinya YOSHIOKA

    Journal of Japan Society of Civil Engineers, Ser. B3   71 ( 2 )   I_1023 - I_1028   2015.09( ISSN:2185-4688

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    Authors have developed a wave power generation system using a vertical slotted breakwater with water mills in the chamber. It has been already shown that the wave absorption function of the wave power generation system is superior than a vertical slotted breakwater without watermills. In this study, reaeration capacitance of the wave power generation system is investigated on the basis of experimental results and previous research knowledge. It is presented that the reaeration capacitance of the wave power generation system can be estimated by experimental formula for a vertical slotted breakwater with wave reflection coefficient. It is presented that the reaeration capacitance of the wave power generation system can be estimated by experimental formula for a vertical slotted breakwater with wave reflection coefficient.

    DOI: https://doi.org/10.2208/jscejoe.71.I_1023

  • A STUDY ON PROPERTIES OF FLOW AND FREE-SURFACE OSCILLATIONS INDUCED BY OSCILLATING CIRCULAR CYLINDER ARRAYS Reviewed

    MATSUMOTO Hiroshi, SHIGEMATSU Takaaki

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   71 ( 2 )   I_877 - I_882   2015( ISSN:1884-2399

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     The properties of flow and free-surface oshillations induced by osillating circular cylinder arrays in stationary fluid were investigated by hydraulic experiment. Not only longitudinal sloshing but also transverse sloshing were observed depending on the oscillation conditions of circular cylinder arrays. Longitudinal sloshing occured when the freaquancies of circular cylinder arrays nearly equaled to the natural longitudinal sloshing freaquancies of a rectangular tank. The largest free-surface displacement occured when longitudinal sloshing occurred. The flow structures were generated and transverse turbulent intensity increased around circular cylinders by transverse sloshing occurrence.

    DOI: 10.2208/kaigan.71.I_877

    CiNii Article

  • Development of Wave Power Generation System using a Slit Type Breakwater: Optimization of Waterwheel and Scaling Law Reviewed

    Tatsuro WAKIMOTO, Kenji KATOH, Takaaki SHIGEMATSU, Shin'ya YOSHIOKA

    日本実験力学会 実験力学   15   s26 - s30   2015( ISSN:1346-4930

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    We developed a new wave power generation system installed in a slit type breakwater. This system has great advantages of no requirement of sea surface affecting on shipping route or fishing ground. In this system, accelerated flow from the slit of the breakwater drives waterwheels. In this study, the output power of the waterwheels was measured using a 1/12 reduced scale model to examine the optimal condition of type, diameter and mounting configuration of the waterwheels. Scaling law for estimating real scale output power from the reduced scale experiment was also examined by numerical simulation. A single mounted crossflow waterwheel achieved the maximum output power when its diameter is 1.5 times the width of the slit. Output power was predicted to be proportional to 3.5th power of scale and the square of wave height.

    DOI: 10.11395/jjsem.15.s26

    CiNii Article

  • Development of a High Accuracy Numerical Model for Predicting Motion of A Floating-Type Evacuation shelter from Tsunami with Eccentricity Reviewed

    Matsumoto Hiroshi・Takaaki Shigematsu

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   70 ( 2 )   I_901 - I_905   2014.11( ISSN:18838944

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    A floating-type evacuation shelter from tsunami is the facility which is swepted in tsunami. Therefore, for establishment of the shelter on site, it is an important task to predict motion of the shelter with accuracy in terms of strength for tsunami fluid force and safety of evacuees. In this study, a numerical model for prediction of transitional and rotational motion of the shelter is presented. According to comparison with laboratory experimental results, calculated results on transitional and rotational motion reasonably agree with experimental ones with accuracy.

    DOI: https://doi.org/10.2208/kaigan.70.I_901

  • 森本 真司, 高田 浩太郎, 重松 孝昌, 加藤 健司, 脇本 辰郎, 吉岡 真弥 Reviewed

    Shinji MORIMOTO, Kohtaroh TAKATA, Takaaki SHIGEMATS, Kenji KATOH, Tatsuroh WAKIMOTO, Shinya YOSHIOKA

    Journal of Japan Society of Civil Engineers Ser. B2 (Coastal Engineering)   70 ( 2 )   I_1296 - I_1300   2014.11( ISSN:1884-2399

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    Because of cost reduction for construction and safe utilization of coastal zone and so on, authors have proposed a wave-power generation system which equips Savonius type watermill in the chamber of a vertical-slotted breakwater. In this paper, effect of equipment of watermill in the chamber on reflection function of the breakwater was investigated in detail by conducting systematic laboratory experiments. Based on the experimental results, rate of rotation of watermill was formulated as a function of water particle velocity amplitude through a vertical slit. Further estimation methodology of a primary transformation from wave energy was presented.

    DOI: https://doi.org/10.2208/kaigan.70.I_1296

  • Possibility of Sea Spray Generation Process Model When Wave Collides with Vertical Wall Reviewed

    Masahide TAKEDA, Kyohei KAWASE, Takaaki SHIGEMATSU, Muneo TSUDA, Takashi HABUCHI, Takahiko AMINO

    Journal of Japan Society of Civi, B3 (Coastal Engineering)   70 ( 2 )   I_946 - I_950   2014.11( ISSN:1884-2399

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    Obtaining knowledge of characteristics of splash generated by wave impact on a concrete construction in ports and harbors is one of significant research topics for highly effective protection of the structure from salt damage. In this study, the generation process of splash by wave impact on vertical wall was captured by high-speed cameras in a laboratory flume with pure water. Using PIV and PTV techniques, spatial location, diameter, and velocity of each splash particle were measured. Further, it was shown that distribution of splash diameters was formulated by the Gompertz curve with two parameters as the Weibull and the logarithmic function of splash diameter. Moreover, mean velocity and mean direction of each diameter of splash were also presented.

    DOI: https://doi.org/10.2208/kaigan.70.I_946

  • Development of Wave Power Generation System Using a Vertical Slit Type Breakwater : Performance of Waterwheel and Bending Plate Type Generators Reviewed

    KATOH Kenji, TONE Kentaro, WAKIMOTO Tatsuro, SHIGEMATSU Takaaki, YOSHIOKA Shin'ya

    The Japan Society of Mechanical Engineers, Fluids engineering conference ...   2014 ( 1 )   60 - 66   2014.10( ISSN:13480251

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    A new type wave power generation system is proposed to be installed in a vertical slit type breakwater. The merits of the system are listed as follows, (i) no occupation of the sea surface, (ii) maintenance facility, and (iii) high energy efficiency by using accelerated flow from the slit of breakwater. In this study, several kinds of water wheels were examined to be installed in a model wave breaker with 1/12 scale ratio to the actual system. The experimental results show that the crossflow type has a higher performance. Ina addition, a bending plate type generator was examined to achieve higher efficiency. When the elastic plate is bent by the drag of wave, a tension appears and a wheel and axle is rotated. The performance of bending plate generator is examined under various experimental conditions. The output per occupied sea area is expected as 23,500(W/m^2) in the real system.

    DOI: https://doi.org/10.11395/jjsem.13.60

    CiNii Article

  • A Study on Prediction for Incipent Motion of a Floating-type Evacuation Shelter from Tsunami Reviewed

    Hiroshi MATSUMOTO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers B3 ()   70 ( 2 )   I_319 - I_324   2014.10( ISSN:2185-4688

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    As an urgent and temporal evacuation facility from tsunami, a floating-type evacuation shelter has been proposed. In order to understand translational and rotational motion of the shelter after tsunami attacks, hydraulic experiment was carried out. On the basis of experimental results, the relationship of translational and rotational motion of a shelter and wave property is presented. A numerical model for prediction of motion of a shelter is presented. According to comparison with experimental results, calculated results on translational and rotational motion agree with the order on experimental ones. It is found that improvement of the presented model is acquired for more accurate prediction of motion of a shelter.

    DOI: https://doi.org/10.2208/jscejoe.70.I_319

  • An Experimental Study on Development of Wave Power Generation Caisson with Savonius Watermills Reviewed

    Kotaro TAKATA, Shinji MORIMOTO, Takaaki SHIGEMATSU, Kenji KATOH, Tatsuro WAKIMOTO, Shin'ya YOSHIOKA

    Journal of Japan Society of Civil Engineers,Ser. B3(Ocean Engineering)   70 ( 2 )   I_85 - I_90   2014.10( ISSN:2185-4688

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    For the purpose of using wave energy as a renewal energy, a wave power generation caisson with wave absorb function is being developed for last several years. In this paper, a wave power generation caisson which consists of impermeable vertical water and an array of savonius-type watermills is proposed. Energy acquisition performance from wave energy and wave attenuation ability were examined by conducting laboratory experiment. Experimental results on the effect of diameter of the watermill, the distance between impermeable wall and the center of watermills, and load torque on them are presented.

    DOI: https://doi.org/10.2208/jscejoe.70.I_85

  • 武田 将英, 川瀬 恭平, 重松 孝昌, 津田 宗男, 羽渕 貴士, 網野 貴彦 Reviewed

    Masahide TAKEDA, Kyohei KAWASE, Takaaki SHIGEMATSU, Muneo TSUDA, Takashi HABUCHI, Takahiko AMINO

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   70 ( 2 )   I_546 - I_551   2014( ISSN:2185-4688

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    For the establishment of the management method of port and harbor facilities which are severely deteriorated ion by chloride damage, quantitative knowledge of spray when wave impacts on the facilities such as a vertical wall and landing pier. In this study, the process of generation and scatter of spray was taken in pictures by using high speed cameras. The characteristics of spray such as diameter of each spray, number of generated spray, splash velocity, splash direction and so on were analyzed by a developed new algorithm of analyzing captured images.

    DOI: https://doi.org/10.2208/jscejoe.70.I_546

  • An Experimental Study on Properties of Turbulence Induced by Oscillatory Flow over a Porous Medium Reviewed

    Yuya OKADA, Takaaki SHIGEMATSU, and Sota NAKAJO

    Journal of Japan Society of Civil Engineers Ser. B2 (Coastal Engineering)   69 ( 2 )   I_41 - I_45   2013.11( ISSN:1884-2399

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    The internal and external fluid flows induced by oscillatory flow over a porous medium were measured by the Particle Tracking Velocimetry (PTV) with matching the refraction index method using two high-speed cameras. The characteristics of spatial variance of velocity components were shown in detail with the time phase variance. Further, the properties of the turbulent quantities such as turbulent kinematic energy and the Reynolds' stress were presented and the relationship among the turbulence properties, the Reynolds' number, and the KC number was discussed.

    DOI: https://doi.org/10.2208/kaigan.69.I_41

  • An Experimental Study on Development of a Breakwater using Circular Cylinder Array Reviewed

    Koutaro TAKATA, Takaaki SHIGEMATSU, Kenji KATOH, Tatsuro WAKIMOTO, and Shinya YOSHIOKA

    Journal of Japan Society of Civil Engineers Ser. B2 (Coastal Engineering)   69 ( 2 )   I_996 - I_1000   2013.11( ISSN:1884-2399

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    In this study, a new type breakwater with a submerged circular cylinder array was developed. Laboratory experiments were carried out for investigation on effect of the height of submerged circular cylinder array on wave absorb function. Experimental results were compared with theoretical solutions. For the other type of a new breakwater with rotatable circular cylinder array, the characteristics of wave absorption were investigated.

    DOI: https://doi.org/10.2208/kaigan.69.I_996

  • An Experimental Study on Microscopic Flow Over and Inside Porous Medium Placed on Oscillatory Flow Reviewed

    Yuuya OKADA, Takaaki SHIGEMATSU, Sota NAKAJO

    Journal of Japan Society of Civil Engineers Ser. B2 (Coastal Engineering)   69 ( 2 )   I_36 - I_40   2013.11( ISSN:1884-2399

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    In order to investigate interaction between upper and inside flow of a porous medium, the microscopic structure of upper and inside flow of the porous medium placed in oscillatory flow was measured by the Particle Tracking Velocimetry (PTV) with the refractive index matching method. The strong shear flow was observed in the vicinity of the porous medium and the depth of shear flow varied with the phase of the oscillatory flow. The depth of non-dimensional shear flow was almost constant and independent with the Reynolds number. Besides, the phase difference of oscillatory flow between upper and inside flow of the porous medium was observed.

    DOI: https://doi.org/10.2208/kaigan.69.I_36

  • Development of Wave Power Generation System Using a Vertical Slit Type Breakwater : Waterwheel and Bending Plate Type Generators Reviewed

    WAKIMOTO Tatsuro, YOSHIOKA Shin'ya, SHIGEMATSU Takaaki, KATOH Kenji

    The Japanese Society for Experimental Mechanics, Proceedings of the Japan Society for Photoelasticity   13 ( 1 )   60 - 66   2013.03( ISSN:13464930

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       A new type of wave power generation system is proposed to be installed in a vertical slit type breakwater. The merits of the system are listed as follows. (i) no occupation of the sea surface, (ii) maintenance facility, and (iii) high energy efficiency by using accelerated flow from the slit of breakwater. In this study, several kinds of water wheels are examined to be installed in a model wave breaker with 1/12 scale ratio to the actual system. The experimental results show that the drag type water wheel (Savonius wheel) has a higher performance compared with the lift type (Darius wheel), since the latter is not accelerated sufficiently during relatively short period of the sea wave. Based on the result that the drag type is favorable, a new generator is proposed to perform higher efficiency. An elastic rectangular plate connected to a wheel and axle via a string is set in the water. When the wave drag bends the plate, a tension appears in the string and it rotates the wheel connected to a generator. The performance of bending plate generator is examined under various experimental conditions. The results show that a soft textile with zero elasticity has the highest performance. The output per occupied sea area is expected as 23,500(W/m<sup>2</sup>) in the real system, which is much higher than other types of generators treated in literatures.

    DOI: 10.11395/jjsem.13.60

    CiNii Article

  • A Study on Reproducibility of Thermal Stratification Using the Regional Ocean Modeling System Reviewed

    Masatoshi MAEKAWA, Takaaki SHIGEMATSU, Toru ENDO, Ryuichiro KIZU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   68 ( 2 )   I_941 - I_945   2012.11( ISSN:1884-2399

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    Numerical simulation and field investigation were carried out to examine reproducibility of thermal stratification using Regional Ocean Modeling System. Water temperature distribution was measured in enclosed water area with weather information. As a result of numerical simulation, it is found that fluctuation of thermal stratification such as destruction caused by fierce wind and development caused by solar radiation can be reproducible. Furthermore, according to calculation results of kinematic viscosity coefficient, it was indicated destruction of thermal stratification was strongly influenced by wind stress.

    DOI: https://doi.org/10.2208/kaigan.68.I_941

  • A Study of Effect of Urban Heat Release into an Enclosed Sea on Water Temperature Using the Regional Ocean Modeling System withTwo-Way Nesting Method Reviewed

    Takaaki SHIGEMATSU, Masatoshi MAEKAWA, Masaki NAKAO, Susumu YAMOCHI

    Journal of Japan Society of Civil Engineers, Ser., B2 (Coastal Engineering)   68 ( 2 )   I_1146 - I_ 1150   2012.11( ISSN:1883-8944(online)

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    Numerical simulation was carried out to evaluate effect of urban heat release into an enclosed sea on the water temperature. To improve the condition of releasing the heated effluent, the resolution near release point was made higher using two-way nesting method. As a result, it is found that the effect was not influenced by only conditions of release but tidal range, tidal elevation, and wind condition. Moreover, it is found that sea surface temperature in Osaka Bay strongly depends on wind stress.

    DOI: https://doi.org/10.2208/kaigan.68.I_1146

  • A Study on Outflow Condition from a Dredged Trench of Turbid Water Induced by Backfill using a Vertical Pipe Reviewed

    Tatsunori HIRANO, Takaaki SHIGEMATSU, Tsuyoshi KANAZAWA

    journal of Japan Society of civil engineers, Ser. B2 ( coastal Engineering)   68 ( 2 )   I_751 I - I_755   2012.11( ISSN:1883-8944 (Online)

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    In order to predict turbidity flow induced by backfill using a vertical pipe, a numerical model has been developed. As a result of analysis on outflow condition from a dredged trench of the turbid water by the developed model, turbid water spreads out of a dredged trench when its thickness in front of the wall is more than 80 percent of height of the wall. Further, water including sulfide and oxygen-poor water in a dredged trench outflow anytime turbidity mass outflows from a dredged trench. In addition, it is figured out that impact to surrounding sea areas by the back-fill can be controlled by the sediment dumping time interval.

    DOI: https://doi.org/10.2208/kaigan.68.I_751

  • Distributions of Ulvaohnoi and Currents at the Artificial Tidal Flat of Hannan Second District in Osaka Bay Reviewed

    Daiki SAKAI, Toru ENDO, Takaaki SHIGEMATSU, Susumu YAMOCHI

    journal of Japan Society of Civil Engineers,Ser. B2 (Coastal Engineering)   68 ( 2 )   I_1186 - I_1190   2012.11( ISSN:1883-8944 (Online)

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    Field surveys were carried out to clarify the effect of geographical features and currents on the distribution of green-tide forming seaweed, Ulva ohnoi at the artificial tidal flat of Hannan Second District in 2011-2012. Thalli of Ulva accumulated on the northern part of the flat due to the tidal current on the flood tide. In contrast, they did not move from the north to the south of the flat because of the slow current on the ebb tide. Wind-driven currents also acted as a factor for the accumulation of Ulva on the flat. The water route was thought to play an important role on the accumulation or dispersion of Ulva at the artificial tidal flat of Hannan Second District.

    DOI: https://doi.org/10.2208/kaigan.68.I_1186

  • A STUDY ON PROCESS OF HEAT TRANSFER AT SEA SURFACE LAYER BASED ON MEASUREMENT DATA Reviewed

    Masatoshi MAEKAWA, Takaaki SHIGEMATSU, Toru ENDO

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   68 ( 2 )   I_929 - I_934   2012.09( ISSN:2185-4688

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    Water temperature distribution in enclosed water area, especially from water surface to 0.5m under water surface, was measured with weather information, wind, solar radiation. Seasonal change of vertical thermal distribution including violent weather effect is presented.Based on the measurement data, latent heat flux and sensible heat flux are estimated. Moreover thermal diffusivity in the water surface layer with 0.5m depth is evaluated. Finally, thermal flux between water surface and atmosphere is discussed with considering thermal supply from deeper water to water surface.

    DOI: https://doi.org/10.2208/jscejoe.68.I_929

  • PARAMETRIC ANALYSIS FOR CHARACTERISTICS OF TURBIDITY FLOW INDUCED BY SEDIMENT DUMPED INTO A VERTICAL PIPE Reviewed

    HIRANO Tatsunori, SHIGEMATSU Takaaki, KANAZAWA Tsuyoshi

    Japan Society of Civil Engineers, PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN   68 ( 2 )   I_396 - I_401   2012( ISSN:2185-4688

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     A numerical model which had been already developed by authors for understanding a characteristic of turbidity flow induced by dumped sediment through a vertical pipe is improved by introducing a modified Smagorinsky turbulence model. According to comparison with a laboratory experimental results, calculated results reasonably agree with experimental ones. As a result of parametric analysis by the developed model, horizontal velocity and momentum of turbidity mass on the bottom can be controlled by initial sedimentation load. In addition, it is figured out that thickness of turbidity mass on the bottom can be controlled by the clearance between the vertical pipe and water bottom.

    DOI: 10.2208/jscejoe.68.I_396

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  • AN EXPERIMENTAL STUDY ON EFFECT OF WAVE-DISSIPATING SECTION ON WAVE REFLECTION OF A VERTICAL CAISSON COVERED WITH BLOCKS Reviewed

    AN EXPERIMENTAL STUDY ON EFFECT OF WAVE-DISSIPATING SECTION ON WAVE REFLECTION OF A VERTICAL CAISSON COVERED WITH BLOCKS

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   67 ( 2 )   I_130 - I_135   2011.12( ISSN:2185-4688

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    A series of laboratory experiment was carried out in order to examine the effect of wave-dissipating section on wave reflection characteristics of a vertical caisson covered with artificial blocks. Based on the experimental results for regular wave, two simple estimation equations of reflection coefficient were derived. One equation was represented as a function of wave steepness and relative wave height. The other was represented as a function of offshore wave length, the length of the section of wave-dissipating blocks which still water surface crossed, and water depth.

    DOI: https://doi.org/10.2208/jscejoe.67.I_130

  • CHARACTERISTICS OF SEA SPRAY GENERATED BY WAVES DASHING AGAINST A VERTICAL WALL Reviewed

    Masahide TAKEDA, Kenji Uozumi, Takaaki SHIGEMATSU, Muneo TSUDA, Takashi HABUCHI, Takahiko AMINO

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   67 ( 2 )   I_673 - I_678   2011.12( ISSN:2185-4688

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    From view point of operation and maintenance, it is a very important issue to survey durability of salt corrosion of coastal structures. Although accurate prediction of quantity of sea spray which attaches surface of coastal structures, the generation process of sea spray when waves attack the structures such as a pier and a sea wall has not been known yet. In this study, laboratory experiments were carried out by using three high-speed cameras to capture images of generation process of spray when regular waves attack an impermeable vertical wall on 1:30 slop. From every captured image, diameter and location of each spray and the number of generated spray were obtained.
    According to experimental results, it was found that the number of generated spray had a peak until t#U*=0.15 after waves attacked a vertical wall and that the number of spray depended on wave conditions. The time when the number of spray began to increase and the increase rate also depend on wave parameters. The mode value of diameter of generated spray distributed between 0.002m to 0.003m, which didn't depend on wave conditions.

    DOI: https://doi.org/10.2208/jscejoe.67.I_673

  • DEVELOPMENT OF A REDUCTION DEVICE FOR TURBIDITY AND FLOW OF THE BOTTOM LAYER BY SEDIMENT DUMPED INTO A VERTICAL PIPE Reviewed

    Tsuyoshi KANAZAWA, Kazuhiro TSURUGASAKI, Takaaki SHIGEMATSU, Tatsunori HIRANO, Kenshi MORITA

    Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)   67 ( 2 )   I_703 - I_708   2011.12( ISSN:2185-4688

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    In backfilling a dredged sea bed pit, reduction and containment of turbidity by dumped sediment are strongly required. In this study, an attachment device to a vertical pipe for reducing generation of turbidity was developed. In the experiments, flow velocity induced by dumped sediment into a vertical pipe and distribution of turbidity were measured in detail. It was shown by laboratory experiments that developed device can reduce velocity and thickness of turbidity cloud moving on the bottom. Moreover, a field experiment using a prototype device in a construction site was carried out. Based on the measured time-series data of velocity and turbidity, effectiveness of the developed device was presented.

    DOI: https://doi.org/10.2208/jscejoe.67.I_703

  • Development of Wave Power Generation using a Vertical Slit Type Breakwater Reviewed

    Takaaki SHIGEMATSU, Kenji KATOH, Tatsuro WAKIMOTO, Shinya YOSHIOKA, Ikkei SOTANI

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   67 ( 2 )   I_1231 - I_1235   2011.11( ISSN:1883-8944

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    Abstract
    This study aims development of wave power generation system using wave energy in coastal zone. A wave power generation system using a vertical slit type breakwater widely used in Japanese ports and harbors is proposed by installing an improved Savonius windmill in a chamber of the breakwater. Laboratory experiment was carried out to examine the characteristics of power generation by measurement of the rotational speed and the torque of the windmill. According to the measurement results, the relationship between obtained power and wave condition was discussed. The effect of installing the windmill in a chamber of the breakwater on wave reflection was also discussed.

    DOI: https://doi.org/10.2208/kaigan.67.I_1231

  • FundamentalStudy on Conditions of Sea Spray Generation when Waves Dashing against a Vertical Wall Reviewed

    Masahide TAKEDA, Kenji Uozumi, Takaaki SHIGEMATSU, Muneo TSUDA, Takashi HABUCHI, Takahiko AMINO

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   67 ( 2 )   I_701 - I_705   2011.11( ISSN:1883-8944

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    From view point of operation and maintenance, it is a very important issue to survey durability of salt corrosion of coastal structures. Although accurate prediction of quantity of sea spray which attaches surface of coastal structures, the generation process of sea spray when waves attack the structures such as a pier and a sea wall has not been known yet. In this study, conditions of sea spray generation which waves dashing against a vertical wall were found out by laboratory experiments and numerical simulation. Although it is known that the Weber number takes part in the generating mechanism of sea spray, the Ursell number might be used as one of the conditions of sea spray generation. It was re-understood well the most predominant factor as the condition of sea spray generation was the collision velocity of water to a vertical wall.

    DOI: https://doi.org/10.2208/kaigan.67.I_701

  • Improvement Effect of Oxygen Supply on Bottom Environment in Consideration of the Oxidation Rate of Reducing Substance Reviewed

    Hiroshi TANAKA, Takaaki SHIGEMATSU, Toru ENDO

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   67 ( 2 )   I_1096 - I_1100   2011.11( ISSN:1883-8944

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    A laboratory experiment using the water of the Doi river was carried out to propose a reaction model of hydrogen sulfide and dissolved oxygen. Effective supply method of oxygen-rich water into the river bottom was investigated for the purpose of remediation of severe hypoxic condition through a series of experiments using a density flow model combined with the proposed reaction model. It was found that hydrogen sulfide of bottom layer mixed by induced flow by density difference and reduced by oxidation reaction. Further, it was found that water supply from multiple points was effective for wide improvement of river water under the same total amount of supply water.

    DOI: https://doi.org/10.2208/kaigan.67.I_1096

  • An Experimental Study for Motion Characteristics of a Floating-Type Evacuation Shelter Covered by a Sphere Shell from Tsunami Reviewed

    Takaaki SHIGEMATSU, Daisuke NAKAHIGASHI

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   67 ( 2 )   I_751 - I_755   2011.11( ISSN:1883-8944

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    A float-type evacuation shelter has ever been proposed as one of urgent evacuation facilities by one of the authors. In this study, a new shelter covered by a sphere shell was proposed in order to control rotation of evacuation space for refugee. A series of hydraulic experiment was carried out to understand motion of the outer spherical shell and inner shelter. The outer shell had been kept rotating immediately after tsunami attack. In contrast, the inner shelter rotated once, but reverted back to the initial condition. The possibility of control of rotation velocity of the inner shelter by the weight was implied.

    DOI: https://doi.org/10.2208/kaigan.67.I_751

  • D102 Development of Wave Power Generation System using Breakwater Reviewed

    WAKIMOTO Tatsuro, SOTANI Ikkei, KATOH Kenji, SHIGEMATSU Takaaki, YOSHIOKA Shin'ya

    The Japan Society of Mechanical Engineers, National Symposium on Power and Energy Systems   2011 ( 16 )   55 - 56   2011.06

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    A new wave power generation system is proposed. Although existing wave power generation systems construct or float their facilities on sea, occupation of sea surface is restricted severely in Japan because of safety ensuring of ship course and securement of fishing grounds. To eliminate this problem, a new wave generation system has been developed. The system includes its facility inside a type of breakwater that is growing popular lately. The breakwater has water chambers for vanishing waves and water flow in/out to the chamber through the slits. The vortex produced behind the slits decay wave motion. In proposed system, a Savonius water mill was located behind the slits and was driven by reciprocating water flow. The generation power in this system was measured using a 1/12 scale model and practical realization of this system was proved by the measurement.

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  • Estimation Method of Oxygen Penetration Depth into the Bottom Sediment at Strongly-Enclosed Sea Area Reviewed

    Takaaki Shigematsu and Toru Endo

    Journal of Coastal Research   64   1633 - 1637   2011.05( ISSN:1551-5036

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    Oxygen consumption by bottom sediment is modeled based on field investigation in a eutrophied port and harbor through a whole year. Based on measured sediment oxygen consumption flux using a chamber and a dark bottle with fluorescence type oxygen sensors, biological and physical-chemical oxygen consumption processes are modeled with water temperature and dissolved oxygen concentration near the sea bottom. It is presented that these factors can be estimated by water temperature and dissolved oxygen above the sea bottom. Through modeling sediment oxygen penetration depth is a useful parameter to represent sea bottom environment as a remediation. Further, estimation method of oxygen penetration depth is improved to take into the change of the dissolved oxygen above sea bottom consideration.

  • A2-D Numerical Simulation of Fluid Flow through Circular Cylinders using the Immersed Boundary Method Reviewed

    TAKEOKA Yusuke, SHIGEMATSU Takaaki, NAKAJO Sota

    JAPANESE JOURNAL OF MULTIPHASE FLOW   24 ( 5 )   689 - 696   2011.03( ISSN:09142843

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    Using the Immersed Boundary Method with Physical Virtual Model proposed by Lima e Silva et al., characteristics of unidirectional flow through circular cylinders is investigated. Calculation result on a pressure drop through circular cylinders is compared with the empirical formula by Ergun. Transition of flow pattern through circular cylinders with increase in the Reynolds number is presented. In addition, spatial and time variation of fluid force acting on each cylinder is presented.

    DOI: https://doi.org/10.3811/jjmf.24.689

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  • 3D Measurement of Fluid Motion induced by Ascending Spheres using the Path-line Connecting Method Reviewed

    UMASE Shinya, NAKAJO Sota, SHIGEMATSU Takaaki

    Japanese journal of multiphase flow   24 ( 5 )   665 - 672   2011.03( ISSN:09142843

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    Authors have developed a new particle tracking velocimetry using path-line images without respite of exposure. A new detection method of coordinate of end-points path-lines is proposed in this paper. It is achieved by adding hue to the information of gray scale image captured by two cameras. Validation of the method is examined using artificial images. Further an application result of the method to measurement of 3D fluid motion induced by ascending spheres is presented.

    DOI: https://doi.org/10.3811/jjmf.24.665

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  • Development of a Numerical Model for Predicting Flow Induced by Sediment Dumped into a Vertical Pipe Reviewed

    Tatsunori HIRANO, Takaaki SHIGEMATSU, Tsuyoshi KANAZAWA

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   751 - 755   2010( ISSN:1884-2399

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    Abstract
    In order to predict fluid motion induced by sediment dumped into a vertical pipe, a numerical model is developed. The numerical model is based on fundamental equation of incompressible fluid with the Boussinesq approximation and the Volume Of Fluid method is applied to trace water surface in a vertical pipe. According to comparison with laboratory experimental results, calculated results reasonably agree with experimental ones in qualitatively. The estimation results by the developed model on thickness and progressive velocity of turbidity mass on the bottom are presented with maximum ambient fluid velocity.

    DOI: 10.2208/kaigan.66.751

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  • An Experimental Study on Effect of Oxygen Supply to the Bottom of Hypoxic Sea on Oxygen Consumption Characteristic and Sea Bottom Environment Reviewed

    Toru ENDO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   1196 - 1200   2010( ISSN:1884-2399

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    To understand oxygen consumption characteristics of sediment for the case of oxygen supply to the bottom of sea under the hypoxic condition, we carried out a laboratory experiment by using sediment and artificial-seawater. It is found that the oxygen consumption pattern of sediment is changing while sediment consumes oxygen. Immediately after oxygen supplying, dissolved oxygen of seawater was consumed by the chemical reaction in the sediment. And then dissolved oxygen consumed by the biological reaction.

    DOI: 10.2208/kaigan.66.1196

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  • A Fundamental Study on the Nonlinear Turbulent Modeling Based on Results of Image Velocimetry for the Flow Passing Through a Porous Media Reviewed

    Sota NAKAJO, Takaaki SHIGEMATSU

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   771 - 775   2010( ISSN:1884-2399

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    The modeling of turbulence for the flow passing through a porous media is analyzed experimentally by using a priori tests. Velocity field inside and around a porous media is obtained with PTV. Two turbulence models, linear eddy viscosity model and nonlinear model, are tested on different Reynolds number conditions. There is a high correlation in the turbulent stress and the nonlinear velocity gradient. The applicability of the latter model is higher than the former. The model coefficient doesn't depend on the Reynolds number and the size of the spatial average area.

    DOI: 10.2208/kaigan.66.771

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  • Numerical Simulation of Fluid Force acting on Solids placed in Unidirectional Flow Reviewed

    Yusuke TAKEOKA, Takaaki SHIGEMATSU, Sota NAKAJO

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   761 - 765   2010( ISSN:1884-2399

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    There is few research on fluid force acting on solids and turbulent flow in a pore of porous media because of the difficulty of measurement in experiments. In order to get fundamental knowledge of them, 2-D unidirectional fluid flow is investigated numerically using the Immersed Boundary method, which rigorously satisfies with the boundary condition on the solid surface with Cartesian grid and Lagrangian grid. Calculation results on pressure drop through circular cylinders reasonably agree with experimental formula by Ergun. In addition, fluid force acting on each cylinder, which varies markedly in time and space, is also presented.

    DOI: 10.2208/kaigan.66.761

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  • Numerical Simulations of Urban Heat Release into Osaka Bay Considering Meteorological Data Reviewed

    Nobuhito MORI, Yasuaki SACHI, Takaaki SHIGEMATSU, Masaki NAKAO, Susumu YAMOCHI, Hajime MASE

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   1296 - 1300   2010( ISSN:1884-2399

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    The stratification of upper layer of coastal water can be regarded as an unused energy source in summer. The coastal water has large capability to store the urban heat owing to the heat capacity difference between the air and water. The estimated urban heat over Sumiyoshi ward in Osaka is equivalent to 10 m<sup>3</sup>/s warm water if we allow 7 degree water temperature increase from stagnant environment. The numerical simulation of the urban heat release into coastal zone is performed. The larger warm water discharge gives absorption effect of short wave radiation from the atomsphere to the ocean due to enhancement of vertical mixing of upper occean.

    DOI: 10.2208/kaigan.66.1296

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  • A Study on Remediation Index of Sea Bottom Environment and Its Estimation Method by Field Investigation Reviewed

    Takaaki SHIGEMATSU, Keisuke MIZUTA, Toru ENDO

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)   66 ( 1 )   1031 - 1035   2010( ISSN:1884-2399

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    Oxygen consumption by bottom sediment in a eutrophied port and harbor is modeled based on field investigation. The model consists of factors of biological contribution and chemical-physical contribution. It is presented that these factors can be estimated by water temperature and dissolved oxygen above the sea bottom. Through modeling sediment oxygen consumption it is found that a penetration depth of oxygen is a useful parameter to represent sea bottom environment as a remediation. Further, estimation method of penetration depth of oxygen is improved to take into the change of the dissolved oxygen above sea bottom consideration.

    DOI: 10.2208/kaigan.66.1031

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  • A Field Experimental Study on Environmental Impact by Surface Water SUpply to the Bottom in a Port and Harbot Reviewed

    Toru ENDO, Keisuke MIZUTA, Ryo USUI, Hiroshi TANAKA, Takaaki SHIGEMATSU

    A Field Experimental Study on Environmental Impact by Surface Water Supply to the Bottom in a Port and Harbor   26   117 - 122   2010( ISSN:0912-7348

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    In ports and Harbors, hypoxic or anoxic water has occurred frequently at the sea bottom. In this study, we carried out a field experiment for supplying surface water with oxygen to the bottom of sea by using surface water supplying device. We supplied surface water to the bottom of sea by using the surface water supplying device in the actual sea under hypoxic condition and we measured water quality profiles near the device. In this paper, we examined the improvement effect on sea bottom environment by surface water supplying. Furthermore, we discussed about the flow pattern of water which was supplied to the bottom of sea by conducing numerical calculations.

  • A Study on an Index for Improvement of Sea Bottom Environment in Eutrophied Port and Harbor Reviewed

    Keisuke Mizuta, Toru Endo, Takaaki Shigematsu

    Annual Journal of civil Engineering in the Ocean, JSCE   26   135 - 140   2010( ISSN:0912-7348

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    In order to get knowledge of sediment oxygen consumption in a eutrophied port through a whole year, field investigation on oxygen consumption flux by the sea bottom was carried out using a chamber and a dark bottle with fluorescence type oxygen sensors. Based on the measurement data, biological and physical-chemical oxygen consumption processes are modeled with water temperature and dissolved oxygen concentration near the sea bottom. It is shown that the oxygen penetration depth can be a useful index which represents a restoration degree of sea area under low or no dissolved oxygen concentration. It is also shown that the presented sediment oxygen consumption model can predict the change of the oxygen consumption by oxygen supply with reasonable accuracy.

  • 人間の活動と関わる水質 : 閉鎖性海域の環境構造 Reviewed

    重松 孝昌

    環境技術学会 環境技術 = Environmental conservation engineering   38 ( 9 )   671 - 673   2009.09( ISSN:03889459

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  • 人間の活動と関わる水質 : 有機物汚染指標について Reviewed

    重松 孝昌

    環境技術学会 環境技術 = Environmental conservation engineering   38 ( 7 )   517 - 519   2009.07( ISSN:03889459

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  • Development of a 3-D PTV using stereoscopic images capturing path lines without respite of exposure Reviewed

    UMASE Shinya, NAKAJYO Sota, SHIGEMATSU Takaaki

    The Visualization Society of Japan, Transactions of Visualization Society of Japan   29 ( 1 )   215 - 220   2009.07( ISSN:09164731

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    DOI: 10.3154/jvs.29.215

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  • ケーブルで連結されたブロックによる底質制御に関する研究

    辻本剛三,成田由加里,酒井大樹,重松孝昌,柿木哲哉,宇野宏司

    海洋開発論文集   25   1275 - 1280   2009

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  • 都市気温へおよぼす大阪湾の海水温の影響 Reviewed

    二宮順一,森 信人,日下博幸,重松孝昌

    海洋開発論文集   25   1047 - 1052   2009

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  • Seasonal Variations in Characteristics of Oxygen Consumption by the Bottom of Ports and Harbors Reviewed

    遠藤 徹, 重松 孝昌

    公益社団法人 土木学会 土木学会論文集B2(海岸工学)   65 ( 1 )   1051 - 1055   2009( ISSN:1884-2399

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    For effective restoration of enclosed coastal zone under anoxic environment such as Osaka bay, it is necessary to understand characteristics of oxygen consumption by the bottom sediment of ports and harbors. In this study, field measurements of the oxygen consumption rate were carried out during the year in a harbor. Seasonal variations in characteristics of the oxygen consumption by sediment were presented and the formulation of oxygen consumption by bottom sediment was attempted.

    DOI: 10.2208/kaigan.65.1051

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  • Analysis of Air Bubbles in the Surf Zone Breaking Waves by Imaging Technique Reviewed

    松尾 祐典, 森 信人, 重松 孝昌, 角野 昇八

    Japan Society of Civil Engineers 土木学会論文集B2(海岸工学)   65 ( 1 )   96 - 100   2009( ISSN:1884-2399

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    The characteristics of bubble entrainment process in the surf zone are discussed. The two-phase flow measurements using two-dimensional imaging technique for bubble measurements, so called Bubble Tracking Velocimetry (BTV) were conducted in the laboratory wave tank. The horizontal and vertical distributions of void fraction and characteristic bubble size were measured and analyzed in detail. The relationship between the void fraction and wave energy dissipation are proposed for the surf zone breaking waves.

    DOI: 10.2208/kaigan.65.96

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  • A Fundamental Study on the Two Perspective 3D-PTV system for Measurement of Complicated Flow Reviewed

    中條 壮大, 重松 孝昌, 馬瀬 慎也

    公益社団法人 土木学会 土木学会論文集B2(海岸工学)   65 ( 1 )   1461 - 1465   2009( ISSN:1884-2399

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    A new algorithm of a 3D particle tracking velocimetry, 3D-PLCV is developed. The significant feature is the use of images capturing path lines without any blind duration between sequential images. Hence, particle matching becomes very easy by connecting path lines in sequential images. Further, use of information of connected path line is useful to restrain generation of ghost tracers in stereo-matching. After description of details of the algorithm of the 3D-PTV developed in this study is presented, validity of the 3D-PTV is shown using artificial images. Finally, measurement result of fluid flow in pore of porous media by the developed PTV is presented.

    DOI: 10.2208/kaigan.65.1461

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  • 中空ブロックを用いたハイブリッド人工リーフに関する実験的研究

    重松孝昌,伴登昭夫,小池敏也,角野昇八

    海洋開発論文集   25   617 - 622   2009

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    Publishing type:Research paper (scientific journal)  

  • 大水深捨石投入における個別要素法を用いた堆積形状の予測

    長山英樹,小竹 望,加藤直幸,阪下勝啓,城戸誠司,重松孝昌

    海洋開発論文集   25   1005 - 1010   2009

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  • 都市気温へおよぼす大阪湾の海水温の影響

    二宮順一,森 信人,日下博幸,重松孝昌

    海洋開発論文集   25   1047 - 1052   2009

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  • Effects of Mixing Model on Thermal Stratification in Shallow Water Reviewed

    Mori Nobuhito, Sachi Yasuaki, Shigematsu Takaaki

    2008   2008

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    There are several turbulence models and stability functions for thermal stratification for ocean circulation modeling. These models have been verified in the open ocean but are verified in depth limited conditions. The two different turbulence models and three different stability functions are used for coastal water modeling. The circulations of coastal water is influenced by both vertical turbulence schemes and stability functions. The Mellor-Yamada level 2.5 closure model gives better agreement for tidal circulations than generic scale turbulence model.

    CiNii Article

  • Effects of momemtum and salinity on bubble characteristcs at air-water interface Reviewed

    MORI Nobuhito, MATSUO Yusuke, SHIGEMATSU Takaaki

    2008   2008

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    The characteristics of bubble entrainment process owing to vertical circular jet at the water surface are discussed. The two-phase flow measurements using imaging technique for two-dimensional bubble measurements, so called Bubble Tracking Velocimetry (BTV) were conducted in the laboratory. The dependence of the Froude number and salinity on the air bubble statistics beneath the water surface are discussed both downward and rising bubbles. The clear dependence of the Froude number on bubble size distribution is obtained through the experiments.

    CiNii Article

  • 1918 Measurement of turbulence inside and near a porous media Reviewed

    NAKAJO Sota, SHIGEMATSU Takaaki, TSUJIMOTO Gozo, SAKASHITA Naoya

    The Japan Society of Mechanical Engineers, The proceedings of the JSME annual meeting   2008 ( 0 )   235 - 236   2008

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    Turbulence in pores of porous media in oscillating flow was measured by using a Particle Tracking Velocimetry with the Refraction index matching method. Relationship between turbulent energy and oscillating flow characteristics such as the Reynolds number and KC number is presented. Variation of generated turbulent energy in pores and vicinity of porous media in a phase is presented in detail.

    DOI: 10.1299/jsmemecjo.2008.2.0_235

    CiNii Article

  • 高速ビデオカメラとMLSを用いた風波界面近傍での渦の時空間挙動の解明

    竹原幸生,江藤剛治,重松孝昌

    海岸工学論文集   55   51 - 55   2008

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  • 浮体式津波避難シェルターの開発に関する基礎的実験

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    海洋開発論文集   24   105 - 110   2008

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  • 貧酸素化した港湾海域における底質の酸素消費特性に関する研究

    遠藤 徹,水田圭亮,重松孝昌

    海岸工学論文集   55   1066 - 1070   2008

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  • 数値シミュレーションを用いた大阪湾への都市排熱放出の影響評価

    森 信人,佐地泰昭,中尾正喜,石川貴司,重松孝昌,矢持進

    海岸工学論文集   55   1346 - 1350   2008

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  • 自流のない都市感潮河川の環境構造とその修復に関する研究

    建部祐哉,重松孝昌,坂東良太

    海岸工学論文集   55   1231 - 1235   2008

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  • 振動流特性が多孔質体誘起乱流に及ぼす影響に関する研究

    中條壮大,重松孝昌,坂下直也,辻本剛三,竹原幸生

    海岸工学論文集   55   841 - 845   2008

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  • 1007 PTV measurements of flows under wind waves(1) Reviewed

    Takehara Kohsei, Terasawa Hirokazu, Shigematsu Takaaki

    The Japan Society of Mechanical Engineers, Fluids engineering conference ...   2007   "1007 - a"   2007.11( ISSN:13482882

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    CiNii Article

  • Development of a Measurement Technique for Liquid-Solid Flows Induced by Dispersion Phase with High Concentration Reviewed

    SHIGEMATSU Takaaki, KOHNO Tetsuya

    THE JAPANESE SOCIETY FOR MULTIPHASE FLOW, Progress in Multiphase Flow Research   2007 ( 3 )   141 - 148   2007.03( ISSN:18815804

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    An image velocimetry technique for measuring fluid motion of liquid-solid flow with high particle density is developed and presented. The new technique, which obtains velocities and directions by connecting path lines of tracers in sequence images captured by high speed cameras, is classified into a kind of particle tracking velocimetry. Detail of the algorithm of the developed image velocimetry, called path line connecting velocimetry (PLCV), is presented. Some results of measuring liquid-solid flows induced by dispersion phase with high concentration are presented.

    DOI: 10.3811/pmfr.2.141

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  • A study on sediment transport inside and outside a permeable submerged breakwater with Macroscopic turbulence model

    G. Tsujimoto, T. Kakinoki, Y. Hamamura, T. Shigematsu, and K. Uno

    Journal of Coastal Research   50   2007

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  • Thermal Energy Usage for Heat Pump in Coastal Area ¥ and Related Characteristics of Thermal Stratification Reviewed

    MORI Nobuhito, OHISHI Tomohiro, NAKAO Masaki, NAKAI Mayumi, SHIGEMATSU Takaaki, YAMOCHI Susumu

    Japan Society of Civil Engineers, Doboku Gakkai Ronbunshuu B   54   1316 - 1320   2007( ISSN:0916-7897

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    The stratification of upper layer of coastal water can be regarded as an unused energy source for heat pump systems near coastal area in the summer. This study examines feasibility of heat pump system for coastal area using a cold water mass beneath the thermal stratified upper water. The field observations for thermalcharacteristics in the harbor were conduced through the summer season. The characteristics of stratified water are investigated by the field observations and numerical simulations. The breakdown of stratification is also examined by the numerical simulations for the heat pump system using the coastal water.

    DOI: 10.2208/proce1989.54.1316

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  • The Research for Dynamics of Oxygen in the Eutrophicated Shallow Sea Area:On the Artificial Tidal Flat of Hannan Second District in Osaka Bay Reviewed

    YAMOCHI Susumu, SHIMIZU Hiroyuki, SHIGEMATSU Takaaki, KOIKE Toshiya

    Japan Society of Civil Engineers, Doboku Gakkai Ronbunshuu B   54   1261 - 1265   2007( ISSN:0916-7897

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    The present paper dealt with the distribution and dynamics of oxygen at the artificial tidal flat of Hannan Second District, Osaka Bay.<BR>Oxygen-deficient waters were found on September 2005 and July 2006 at the bottom of shallow area of the artificial tidal flat where ground levels were from D. L.-2.3 to D. L.-1.9m. Photosynthesis of phytoplankton and seaweed played an important role on the dynamics of oxygen at the artificial tidal flat. Release of oxygen by phytoplankton changed depending on photon flux density, while dominant seaweed, Ulva sp. showed active photosynthesis in spite of low photon flux density. Oxygen consumption by respiration of Ulva sp. promoted hypoxia at night at the ground level of ca. D. L.-1. Om of the artificial tidal flat.

    DOI: 10.2208/proce1989.54.1261

    CiNii Article

  • Experimental Study on Behavior of Vertical Circulation Flow Generated by VCF-Breakwater under Density Stratified Field Reviewed

    ENDO Toru, SHIGEMATSU Takaaki

    Japan Society of Civil Engineers, Doboku Gakkai Ronbunshuu B   54   1236 - 1240   2007( ISSN:0916-7897

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    We have developed a new breakwater, named as VCF-Breakwater for generating vertical circulation flow which transports oxygen-rich surface water into the anoxic sea bottom. In this study, the behavior of the vertical circulation flow was measured using dye and PIV technique and salinity profiles were also measured by salnometers. Based on the experimental results, the effectiveness of the VCF breakwater is discussed.

    DOI: 10.2208/proce1989.54.1236

    CiNii Article

  • An Experimental Study on the Effect of Reynolds Number on Turbulence induced by Porous Media Reviewed

    NAKAJYO Souta, SHIGEMATSU Takaaki, TSUJIMOTO Gozo, TAKEHARA Kosei

    Japan Society of Civil Engineers, Doboku Gakkai Ronbunshuu B   54   801 - 805   2007( ISSN:0916-7897

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    The effect of Reynolds number on the properties of turbulence generated by a porous media was investigated by a hydraulic experiment. Velocity field inside and around the porous media was measured with a high resolution temporally and spatially using the Super-resolution KC method and a refractive index matching method. It is presented that some properties of turbulence can be normalized by a characteristic velocity and a diameter of the sphere which constitute the porous media.

    DOI: 10.2208/proce1989.54.801

    CiNii Article

  • Application of three-dimensional hybrid stereoscopic particle image velocimetry to breaking waves Reviewed

    Watanabe Yasunori, Hideshima Yoshiyasu, Shigematsu Takaaki, Takehara Kohsei

    MEASUREMENT SCIENCE AND TECHNOLOGY   17 ( 6 )   1456 - 1469   2006.06( ISSN:0957-0233

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    DOI: 10.1088/0233/17/6/025

  • NITROGEN BUDGET AT THE NATURAL TIDAL FLAT AND INFLUENCE OF RAINFALL : ON THE ESTUARY TIDAL FLAT IN WAKAYAMA Reviewed

    WADA Yasuhiko, YAMOCHI Susumu, FUJIWARA Syunsuke, HIRAI Ken, HAMADA Nodoka, KANEKO Kenji, SUGINO Nobuyoshi, SHIGEMATSU Takamasa, KOIKE Toshiya

    Japan Society of Civil Engineers, Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)   62 ( 1 )   41 - 52   2006.04( ISSN:1880-6082

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    In this study, we investigated the nitrogen budget with fine weather and factors of preservation at the natural tidal flat near the city. Furthermore, we examined the amount of the inflow load to the tidal flat at rainy days. As results, the Ulva and Benthoses contribute for the nitrogen fixation in the tidal flat. The runoff water load is relatively little as the amount of inflow load to the tidal flat. On the estuary tidal flat in wakayama are controlled by the amount of the treated water load from the wastewater treatment plant and the amount of the pump water load up from the tidal flat

    DOI: 10.2208/jscejg.62.41

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  • 多孔質体によって誘起される流れの時間的・空間的乱れ特性について Reviewed

    重松 孝昌, 中條 壮大, 辻本 剛三

    Japan Society of Civil Engineers 海岸工学論文集   53   761 - 765   2006( ISSN:0916-7897

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    屈折率整合法を用いた画像計測手法によって, 多孔質体の間隙部およびその上・下流部に及ぶ大領域を対象とした流速場を高時間解像度で計測し, さらに, 多孔質体の異なる断面で計測を行うことによって, 多孔質体内流れの準3次元構造の把握を試みた. 計測結果に基づいて, スペクトル, 乱流諸量を算定し, 流れの時・空間的変動特性について検討を行った. その結果, 断面毎に値の差異は見られたが, 分布形状は類似しており, 全断面平均値として多孔質体内部の乱流諸量を求めることができた. また, 異なる渦動粘性モデルを用いて多孔質体内外の渦動粘性係数を推定し, 定量的な比較を行った.

    DOI: 10.2208/proce1989.53.761

    CiNii Article

  • AM06-10-012 Study on Reaeration Characteristics of the Breakwater for Generating Vertical Circulation Flow Reviewed

    Endo Toru, Shigematsu Takaaki, Tatebe Yuya

    2006   2006

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    In most of coastal zone, dissolved oxygen near the sea bottom decreases in summer season. It is important to supply oxygen to the anoxia sea bottom for habitat environment of benthos. A new breakwater for generationg vertical circulation flow (VCF) has developed for transporting oxygen-rich surface water to the sea bottom. Effectiveness of the breakwater on generating the flow has been already verified by experiments and numerical calculations. In this study, for evaluating the reaeration capacity of VCF, mass transfer coefficient of oxygen was measured by laboratory experiment. And, the relationship between reaeration characteristics and hydraulic characteristics of VCF were examined by using a numerical model.

    CiNii Article

  • AM06-07-019 Estimation of Deposition Configuration of Particles Dumped into Waters Reviewed

    Shigematsu Takaaki

    2006   2006

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    Author has already developed a numerical model for calculating liquid-solid flow by using the Distinct Element Method for analyzing particle motions and the Volume of Fluid Method for tracking water surface. In this study, validity of the numerical model is checked by comparing calculated and experimental results on deposition configuration of particles dumped into waters. Subsequently variation of configuration on the bottom with number of dumping particles is investigated by conducting numerical experiments using the model.

    CiNii Article

  • 斜面上を運動する粒子群に誘起される流体運動に関する実験的研究

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    土木学会   53   136 - 140   2006

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    海岸工学文集

  • 鉛直循環流誘起堤体の曝気能に関する実験的評価

    遠藤 徹,重松孝昌,建部祐哉

    土木学会   53   1181 - 1185   2006

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  • An Experimental Study on Reaeration by a Breakwater Generating Vertical Reviewed

    遠藤 徹, 重松 孝昌, 建部 祐哉

    大阪市立大学 Memoirs of the Faculty of Engineering, Osaka City University   46   77 - 82   2005.12( ISSN:00786659

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  • Sediment Transport Inside and Outside a Permeable Breakwater by Using Macroscopic Turbulence Model

    ANNUAL JOURNALOFCOASTALENGINEERING, JSCE   52 ( 1 )   456 - 460   2005( ISSN:0916-7897

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  • The Research for the Quantitive Evaluation of Evnironmental Elements in a Natural Tidal Flat of Wakagawa Estuary -An Analysis Using Preventive Expenditure Method, Travel Cost Method and Contingent Valuation Method-

    Annual Journal of Coastal Engineering, JSCE   52 ( 2 )   1151 - 1155   2005( ISSN:0916-7897

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  • Large-scale Experiments on Effectiveness of a Breakwater Promoting Vertical Circulation FLow

    Asian and Pacific Coasts 2005   531 - 542   2005

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  • Effectof Tide Level on Effectiveness of Breakwater Promoting Vertical Circulation Flow

    Annual Journal of Civil Engineering in the Ocean, JSCE   21   617 - 622   2005

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  • 都市に近接する自然干潟(和歌川河口干潟)の流動特性に関する現地調査

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    海岸工学論文集   51 ( 2 )   1176 - 1180   2004

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  • 気球とデジタルビデオカメラを用いた浅海域の拡散係数の推定

    重松孝昌・小池敏也・矢持 進

    海洋開発論文集   20   1193 - 1197   2004

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  • 一方向流中に置かれた多孔質体による乱流の生成・減衰過程に関する基礎実験

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    海岸工学論文集   51 ( 1 )   661 - 665   2004

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  • 物理・生物的要因の空間特性を考慮した浅海域生態系モデルの構築

    重松孝昌・馬場貴裕・矢持 進

    海岸工学論文集   51 ( 2 )   1116 - 1120   2004

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  • 都市に近接する自然干潟(和歌川河口干潟)の生物生産と窒素収支

    矢持 進・藤原俊介・和田安彦・平井 研・濱田のどか・大塚正純・杉野伸義・重松孝昌・小池敏也

    海岸工学論文集   51 ( 2 )   1021 - 1025   2004

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  • Numerical modeling of the initial stages of dam-break waves

    Journal of Hydraulic Research   ( 42 )   2004

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  • 粒子群の運動に誘起される波の生成・伝播機構に関する基礎実験

    重松孝昌・小田一紀・赤木統彦

    海岸工学論文集   50 ( 1 )   256 - 260   2003

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  • 多孔質体による乱れの生成・減衰機構の解明に関する実験的研究

    重松孝昌・竹原幸生・塩足純一・小田一紀

    水工学論文集   46   787 - 792   2003

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  • 密度成層場における鉛直循環流誘起堤体の効果に関する研究

    重松孝昌・池田憲造・小田一紀・小池敏也・延廣玲子・藤田 孝・戸川 進

    海岸工学論文集   50 ( 2 )   1206 - 1210   2003

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  • 貧酸素化の抑制を目的とした鉛直循環流誘起堤体の開発

    重松孝昌・池田憲造・小田一紀

    土木学会論文集   VII-378   57 - 68   2003

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  • An Experimental Study on 3-D Fluid Motion in the Pore of Block-Type Submerged Breakwater under Waves

    49   791 - 795   2002( ISSN:0916-7897

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  • Development of a Seawall Generating Vertical Circulating Flows for Improving the Bottom Environment

    49   806 - 810   2002( ISSN:0916-7897

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  • A Development of 3-D modeling for liquid-solid flow by usint the DEM and VOF method and its application

    48   6 - 10   2001

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  • Wave-Induced Vertical Circulating Flows in Front of Pipe-Perforated Seawalls

    Proceedings of Coastal Engineering   48   2001( ISSN:0916-7897

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  • A Design Method of Double Slit-Wall Breakwater from a Viewpoint of Wave Energy Disspation

    Proceedings of Coastal Engineering   48 ( 1 )   696 - 700   2001( ISSN:0916-7897

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  • Parametric analysis of 3-D dispersion behavior of a settling particle cluster

    48   1031 - 1035   2001

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  • 個別要素法による水中沈降粒子群の3次元挙動に関する研究

    小田一紀,田野雅彦,廣瀬真由

    土木学会・海岸工学論文集   47 ( 2 )   996 - 1000   2000( ISSN:0916-7897

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  • 画像計測及び乱流モデルによる有孔水平板の波浪制御特性と周辺波動場の解明

    辻本剛三,角野昇八,竹原幸生,山野貴司

    土木学会・海岸工学論文集   47 ( 2 )   781 - 785   2000( ISSN:0916-7897

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  • 準3次元河口モデル地形を対象とした密度流と最大混濁帯の形成過程に関する数値シミュレーション

    宋 元平,小田一紀,汪 思明

    土木学会・海岸工学論文集   47 ( 1 )   471 - 475   2000( ISSN:0916-7897

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Books and Other Publications

  • 自然災害科学・防災の百科事典

    日本自然災害学会編( Role: Contributor ,  第6章津波災害/津波避難シェルター)

    丸善出版  2022.01  ( ISBN:978-4-621-30664-2

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    Total pages:806   Responsible for pages:2  

  • 住まいの百科事典

    一般社団法人 日本家政学会 住居学部会 (編)( Role: Contributor)

    丸善出版  2021.04  ( ISBN:978-4-621-30581-2

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    Total pages:700   Responsible for pages:4  

  • 地域変容に対応した避難行動要支援者のための地区防災計画-課題と展望-

    生田英輔、木村義成、佐伯大輔、志垣智子、重松孝昌、中原洋子、三田村宗樹、宮野道雄、森一彦、山本敬雅、横山美江、由田克士、吉田大介、渡辺一志( Role: Joint author)

    大阪公立大学共同出版会  2019.03 

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    Total pages:137   Responsible for pages:14  

  • 水理公式集

    辻本哲郎,清水義彦,ほか( Role: Joint author)

    土木学会  2019.03 

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    Total pages:929   Responsible for pages:6  

  • 生活現場で学ぶアクティブラーニング型防災教育(2018年度版)

    生田英輔、河本ゆう子、佐伯大輔、重松孝昌、髙田洋吾、三田村宗樹、村川由加里( Role: Joint author)

    大阪市立大学都市防災教育研究センター  2019.03 

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    Total pages:44   Responsible for pages:2  

  • 生活現場で学ぶアクティブラーニング型防災教育(2017年度板)

    生田英輔,大阪府立大学COC研究所,河本ゆう子,佐伯大輔,重松孝昌,三田村宗樹,森永速男,吉田大介( Role: Joint author)

    大阪市立大学都市防災教育研究センター  2018.03 

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    Total pages:48   Responsible for pages:4  

  • コミュティ防災の基本と実践

    公立大学連携地区防災教室ワークブック編集委員会・大阪市立大学都市防砂教育研究センター 編( Role: Joint author)

    大阪公立大学共同出版会  2018.03 

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    Total pages:233   Responsible for pages:12  

  • 生活現場で学ぶアクティブラーニング型防災教育(2016年度版)

    森一彦 他( Role: Joint author)

    大阪市立大学都市防災教育研究センター  2017.03 

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    Total pages:111   Responsible for pages:4  

  • いのち守る都市づくり[アクション編] みんなで備える広域複合災害

    西澤良記・宮野道雄・森一彦・重松孝昌・加藤司・三田村宗樹ほか38名( Role: Joint author)

    大阪公立大学共同出版会  2013.03 

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    Book type:Scholarly book

  • 東北地方太平洋沖地震による津波災害から学ぶ ―南海・東南海地震による津波に備えて

    間瀬肇,重松孝昌編( Role: Sole author)

    土木学会関西支部  2013.03  ( ISBN:9784810608090

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  • 東北地方太平洋沖地震による津波災害から学ぶ : 南海・東南海地震による津波に備えて

    土木学会関西支部, 間瀬 肇, 重松 孝昌( Role: Sole author)

    土木学会関西支部  2013  ( ISBN:9784810608090

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    Book type:Scholarly book

  • いのちを守る都市づくり[課題編]東日本大震災から見えてきたもの

    森一彦,加藤司,重松孝昌,他( Role: Sole author)

    大阪公立大学共同出版会  2012.03  ( ISBN:9784901409896

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    Book type:Scholarly book

  • The Osaka bay --

    ( Role: Joint author)

    2009  ( ISBN:978-4-7699-1208-8

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    Book type:Scholarly book

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MISC

  • Development of Distributed Wave Power Generation System Using Slit Type Breakwater Invited International journal

    Tatsuro Wakimoto, Kenji Katoh, Takaaki Shigematsu, Shin'ya Yoshioka

    76 ( 4 )   106 - 111   2022.04( ISSN:2436-2905

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   International / domestic magazine:Domestic journal  

    Other URL: https://digitalbook.jsae.or.jp/jk202204-ezwspc57f4vnq8qa/book/

  • 大阪ベイエリアの現状・課題と展望 ~豊かで安心な海を~ Invited

    重松孝昌

    日本建築協会・建築と社会   101 ( 1174 )   32 - 33   2020.01

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Kind of work:Single Work  

  • 沿岸域における最近10年間を振り返る Invited

    重松孝昌

    日本沿岸域学会誌   31 ( 2 )   50 - 52   2018.09

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Kind of work:Single Work  

  • 草魂 Invited

    重松孝昌

    コンクリート工学   51 ( 10 )   847 - 847   2014.10

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Kind of work:Single Work  

  • 新しい海辺づくり(7) 人間の活動とかかわる水質-閉鎖性海域の環境構造- Invited International journal

    重松孝昌

    環境技術   38 ( 9 )   71 - 73   2009.09

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    Authorship:Lead author, Last author, Corresponding author   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   International / domestic magazine:Domestic journal  

  • Current Sate of Estuarine Environment and Engineering Technology for Recovering the Environment

    Journal of Japan Society on Water Environment   24 ( 10 )   640 - 644   2001( ISSN:0916-8958

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Kind of work:Single Work  

  • Aim of Environment Recovering and Engineering Technology

    Environmental Conservation Engineering   30 ( 7 )   537 - 543   2001( ISSN:0388-9459

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    Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • Types and Features of Coastal Ecosystem Models International journal

    77   7 - 12   2001

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    Authorship:Last author   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   International / domestic magazine:Domestic journal  

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Presentations

  • 回転楕円体で構成される多孔質体の後流域における乱れの分布特性に関する検討 Domestic conference

    藤平涼、重松孝昌、中條壮大、山村雄司

    高速度イメージングとフォトニクスに関する総合シンポジウム2023  2023.12  高速度イメージングとフォトニクスに関する総合シンポジウム2023

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    Presentation type:Oral presentation (general)  

    Venue:大阪  

  • 3-D SIMULATION OF FLOW THROUGH A POROUS BODY COMPOSED SPHEROIDS Domestic conference

    Ena TANAKA, Takaaki SHIGEMATSU, Sota NAKAJO

    2023.11 

  • A Simulation of Sediment Transportation by the Nankai Trough Tsunami into Osaka City International coauthorship International conference

    Nicolas Eko Saputra,Takaaki Shigematsu

    International Conference on Asian and Pacific Coasts  2023.11  The Chinese Ocean Engineering Society (COES), the Coastal Engineering Committee of the Japan Society of Civil Engineers (JSCE), and the Korean Society of Coastal and Ocean Engineers (KSCOE)

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    Presentation type:Oral presentation (general)  

    Venue:Kyoto  

  • 南海トラフ巨大地震津波による大阪市域の河川沿いにおける土砂堆積の傾向に関する研究 Domestic conference

    Saputra, Nicolas Eko、重松孝昌

    都市防災研究シンポジウム  2023.11  大阪公立大学都市科学・防災研究センター

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    Presentation type:Oral presentation (general)  

    Venue:大阪  

  • PTV Measurements of Flow in the Wake of Porous Media International conference

    T. Shigematsu, S. Nakajo, Y. Yamamura

    37th International Conference on Coastal Engineering  2022.12  The American Society of Civil Engineers

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    Presentation type:Oral presentation (general)  

    Venue:Sydney, Australia  

  • 楕円体で構成される多孔質体の間隙構造が流況特性に及ぼす影響に関する実験的研究 Domestic conference

    山村 雄司, 重松 孝昌, 中條 壮大

    海岸工学講演会  2022.11  土木学会 海岸工学委員会

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    Presentation type:Oral presentation (general)  

    DOI: https://doi.org/10.2208/kaigan.78.2_I_625

  • ESTIMATION OF WAVE SURFACE MOTION FROM WATER PRESSURE DATA MEASURED IN THE CHAMBER OF A VERTICAL SLOTTED BREAKWATER Domestic conference

    2022.06 

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    Presentation type:Oral presentation (general)  

    DOI: https://doi.org/10.2208/jscejoe.78.2_I_367

  • 3D Simulation on the Characteristics of Flow around Oscillating Cylinders through the Air-Water Interface Domestic conference

    2021.08 

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    Presentation type:Oral presentation (general)  

  • An Experimental Study on the Characteristics of Flow in the Wake of a Single Prolate Spheroid and an Array of Prolate Spheroids in Unidirectional Flow Domestic conference

    2021.08 

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    Presentation type:Oral presentation (general)  

  • Numerical Calculation on the Effect of Pore Structure on the Flow through Porous Media Domestic conference

    2021.08 

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    Presentation type:Oral presentation (general)  

  • 縦スリット直立消波工遊水室における水面変動および流速の現地観測 Domestic conference

    重松 孝昌,田口恵美,加藤 健司,脇本 辰郎,吉岡真弥

    海洋開発シンポジウム  2021.07 

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    Presentation type:Oral presentation (general)  

  • 未来社会に求められるインフラ維持管理手法 Domestic conference

    重松孝昌

    大阪市立大学第84回 オープン・ラボラトリー  2021.01 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • SDGsと海の利活用 Invited Domestic conference

    重松孝昌

    一般社団法人日本建設業連合会関西支部海洋工事技術セミナー  2020.11 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • An Experimental Study on Effect of Angle of Attack of a Prolate Spheroid on Flow Characteristics in the Wake Domestic conference

    Yuji Yamamura, Takaaki Shigematsu and Sota Nakajo

    2020.11 

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    Presentation type:Oral presentation (general)  

  • VELOCITY CHARACTERISTICS IN WAKE OF A NON-SPHERE BODY AND IN PORE OF POROUS MEDIA COMPOSED OF NON-SPHERES International conference

    Yuji Yamamura, Takaaki Shigematsu, Sota Nakajo

    International Conference on Coastal Engineering  2020.10 

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    Presentation type:Oral presentation (general)  

  • DEVELOPMENT OF WAVE POWER GENERATION SYSTEM SUITABLE FOR INNER BAY International conference

    Rioko Hirota, Takaaki Shigematsu, Kenji Katoh, Tatsuro Wakimoto, Shinya Yoshioka

    International Conference on Coastal Engineering  2020.10 

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    Presentation type:Oral presentation (general)  

  • 一方向流場および波動場に設置されたサボニウス水車の回転性能の評価に関する研究 Domestic conference

    廣田理織子,重松孝昌

    2020年度土木学会関西支部年次学術講演会  2020.05 

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    Presentation type:Oral presentation (general)  

  • 一方向流中に置かれた楕円体周りの流況に関する実験的研究 Domestic conference

    山村雄司,重松孝昌

    2020年度土木学会関西支部年次学術講演会  2020.05 

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    Presentation type:Oral presentation (general)  

  • 鉛直壁前面に設置された円柱による波浪変形と飛沫の発生に関する基礎的研究 Domestic conference

    上川 岳人,重松 孝昌

    第66回海岸工学講演会  2019.10 

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    Presentation type:Oral presentation (general)  

  • 構成部材のアスペクト比が多孔質体通過流れに及ぼす影響 Domestic conference

    渡辺 友哉,中條 壮大,重松 孝昌

    第66回海岸工学講演会  2019.10 

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    Presentation type:Oral presentation (general)  

  • 重りを分散配置した垂下式膜の一様流れにおける変形に関する水理実験 Domestic conference

    原 知聡,重松 孝昌,武田 将英

    令和元年度土木学会全国大会  2019.09 

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    Presentation type:Oral presentation (general)  

  • 一様流下にある膜体の有効膜高の実用算定式の提案 Domestic conference

    武田将英,重松孝昌,倉原義之介,原知聡,西山大和

    第44回海洋開発シンポジウム  2019.07 

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    Presentation type:Oral presentation (general)  

  • 低い鉛直平板脚部の洗掘特性に関する研究 Domestic conference

    中原悠輔,重松孝昌

    第65回海岸工学講演会  2018.11 

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    Presentation type:Oral presentation (general)  

  • 干潟健全度指数を用いた大阪湾の干潟のサービスの定量化 -東京湾と大阪湾の比較による 干潟のサービスの特徴の把握- Domestic conference

    岡田知也,三戸勇吾,菅野孝則,高橋俊之,秋山吉寛,黒岩寛,遠藤徹,大谷壮介,矢持進,上月康則,日下部敬之,大塚耕司,山中亮一,重松孝昌,中野和之,宇城真,桑江朝比呂

    第65回海岸工学講演会  2018.11 

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  • 波動場における多孔質体近傍の微細流動特性についての基礎的研究 Domestic conference

    中條壮大,小塚泉,辻本剛三,重松孝昌

    第65回海岸工学講演会  2018.11 

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  • スリット諸元が有脚式離岸堤の局所洗掘特性に及ぼす影響に関する研究 Domestic conference

    山野貴司,酒井大樹,重松孝昌,藤原 隆一

    第65回海岸工学講演会  2018.11 

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  • 波動場に置かれた鉛直平板下部に生じる局所洗掘の特性とその対策に関する基礎的検討 Domestic conference

    中原悠輔,重松孝昌,山野貴司

    第43回海洋開発シンポジウム  2018.07 

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    Presentation type:Oral presentation (general)  

  • 波流れ共存場におけるサボニウス水車の回転特性に関する実験的研究 Domestic conference

    坂本優駆,重松孝昌,加藤健司,脇本辰郎,吉岡真弥(

    平成30年度土木学会関西支部年次学術講演会  2018.06 

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    Presentation type:Oral presentation (general)  

  • 大阪の水災害,その歴史と対策 Domestic conference

    重松孝昌

    第5回震災対策技術展大阪  2018.06  「震災対策技術展」大阪実行委員会

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

    Venue:コングレコンベンションセンター(グランフロント大阪内)  

  • 波浪発電の現状と将来 Invited Domestic conference

    重松孝昌

    TMC技術研修会  2018.03 

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    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 砕波を伴う波が鉛直壁に作用する際に発生する飛沫に関する研究 Domestic conference

    安平悠紀,重松孝昌,武田将英

    第64回海岸工学講演会  2017.10 

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    Presentation type:Oral presentation (general)  

  • 微流動促進が閉鎖性水域の底層環境に及ぼす影響に関する研究 Domestic conference

    助永裕昭,重松孝昌,相馬明郎,吉村 直孝,平井 研

    第64回海岸工学講演会  2017.10 

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    Presentation type:Oral presentation (general)  

  • 多孔質体間隙部の微細流動計算と部材欠損が流動及び作用流体力に及ぼす影響の検討 Domestic conference

    中條壮大,渡辺友哉,重松孝昌

    第64回海岸工学講演会  2017.10 

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  • 揺動する固体周りの高精度気液二流体運動解析手法に関する研究 Domestic conference

    松本弘史,重松孝昌

    第64回海岸工学講演会  2017.10 

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  • 光ファイバを用いた有脚式離岸堤脚部の局所洗掘計測手法 Domestic conference

    -

    土木学会第72回年次学術講演会  2017.10 

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  • An Experimental Study on the Condition of Splash Generation in a Wave Field Including a Pile in front of an Impermeable wall Domestic conference

    2017.08 

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    Presentation type:Oral presentation (general)  

  • An Experimental Study on the Effect of a Vertical Plate in Wave Field on Scour Characteristics Domestic conference

    2017.08 

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    Presentation type:Oral presentation (general)  

  • Numerical Simulation on Influence of Installation Condition of Plates on Sloshing Behavior Domestic conference

    2017.08 

  • 桟橋護岸前面における飛沫発生形態に関する研究 Domestic conference

    上川岳人,重松孝昌

    平成29年度土木学会関西支部年次学術講演会  2017.05 

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    Presentation type:Oral presentation (general)  

  • スロッシング発生時に傾斜板群に作用する流体力に関する研究 Domestic conference

    田邊礼佳,重松孝昌,中條壮大

    平成29年度土木学会関西支部年次学術講演会  2017.05 

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  • 公立大学防災センター連携によるコミュニティ防災教室ネットワークの構築 森一彦・三田村宗樹・重松孝昌・渡辺一志・佐伯大輔・生田英輔・吉田大介・志垣智子 Domestic conference

    -

    地区防災計画学会 第3回大会  2017.03 

  • 都市構造を考慮した複合水災害予測システムの構築 Domestic conference

    -

    都市防災研究シンポジウム  2016.11 

  • 縦スリット式直立消波工を利用した波力発電システムの不規則波に対する性能評価 Domestic conference

    -

    海岸工学講演会  2016.11 

  • 大規模水害による臨海大都市空間の浸水特性に関する研究 Domestic conference

    -

    海岸工学講演会  2016.11 

  • 鉛直スリットを有する透過性構造物の消波性能と底部流況特性に関する研究 Domestic conference

    -

    海岸工学講演会  2016.11 

  • 水平振動する単一円柱周りにおける乱流の特性に関する研究 Domestic conference

    -

    海岸工学講演会  2016.11 

  • Social Implementation of ‘CDMS’ Community Disaster Management System for improvement of Daily-Life Behaviors: Kazuhiko Mori, Muneki Mitamura, Takaaki Shigematsu, Hitoshi Watanabe, Daisuke Saeki, Eisuke Ikuta International conference

    4th International Conference on Urban Disaster Reduction  2016.10 

  • 三重式縦スリット透過性構造物の消波特性に関する実験的研究 Domestic conference

    -

    土木学会平成28年度全国大会  2016.09 

  • 人口減少社会における大阪湾流域圏からの汚濁負荷量の推計 Domestic conference

    -

    土木学会関西支部年次学術講演会  2016.05 

  • スロッシング発生時における矩形水槽内の平板に作用する流体力に関する数値計算 Domestic conference

    -

    土木学会関西支部年次学術講演会  2016.05 

  • Activity of the CERD on social implementation of knowledge for urban disaster management Domestic conference

    International Symposium on Natural and Technological Risk Reduction at Large Industrial Parks (NATECH 2016)  2016.01 

  • 複合水災害が地下浸水伝播特性に及ぼす影響に関する研究 Domestic conference

    -

    日本自然災害学会  2014.09 

  • 浮体式津波避難シェルターに関するアンケート調査 Domestic conference

    -

    日本自然災害学会  2014.09 

  • 矩形水槽内のスロッシングに及ぼす傾斜板の影響に関する研究 Domestic conference

    -

    土木学会関西支部年次学術講演会  2014.05 

  • 縦スリット式直立消波工の遊水室内に設置した水車が消波機能に及ぼす影響に関する研究 Domestic conference

    -

    土木学会関西支部年次学術講演会  2014.05 

  • 高潮・洪水同時生起による複合災害の被害想定に関する基礎的研究 Domestic conference

    -

    日本沿岸域学会  2013.07 

  • A Study on Effect of Discharge of Thermal Water on Structure of Water Temperature in an Enclosed Bay International conference

    the Twenty-third (2013) International Offshore and Polar Engineering  2013.07 

  • 浮体式津波避難シェルターの配置計画の検討に関する研究 Domestic conference

    -

    日本沿岸域学会  2013.07 

  • GIS を用いた複合災害の被害想定に関する基礎的研究 Domestic conference

    -

    土木学会関西支部年次学術講演会  2013.05 

  • 大阪市の建物ストックと震災時のがれき量の推定 Domestic conference

    -

    環境技術学会研究発表大会  2012.09 

  • 浮体式津波避難シェルターの運動予測モデル Domestic conference

    -

    日本自然災害学会学術講演会  2012.09 

  • Characteristics of Sediment Oxygen Consumption by Sediment under Hypoxic Condition in Enclosed Coastal Seas International conference

    International Conference on Coastal Enginering  2012.07 

  • DEVELOPMENT OF WAVE POWER GENERATION SYSTEM SUITABLE FOR INNER BAY International conference

    Rioko Hirota, Takaaki Shigematsu, Kenji Katoh, Tatsuro Wakimoto, Shinya Yoshioka

    International Conference on Coastal Engineering  2010.10 

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    DOI: https://doi.org/10.9753/icce.v36v.structures.39

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Industrial Property Rights

  • 波力発電システム

    脇本辰郎、加藤健司、重松孝昌、吉岡真弥、平田昌幸、比嘉謙太、植田芳昭

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    property_type:Patent 

    Application no:特願2022-131691 

  • 波力発電堤体

    重松孝昌,加藤健司,吉岡真弥,脇本辰郎

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    property_type:Patent 

     波のエネルギーを消散させるとともに、前記波のエネルギーから発電を行う波力発電システムであって、 水中に設置され、不透過壁を有するが、前記不透過壁の沖側に透過性の前壁を有さない防波堤と、 前記不透過壁の沖側において、平面視において前記不透過壁の延びる方向に沿って配列された複数の回転体からなる回転体列と、 前記複数の回転体の回転エネルギーを電力に変換する発電機とを備える、波力発電システムを開発した.

  • 波力発電システム

    重松孝昌・脇本辰郎・吉岡真弥・加藤健司

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    property_type:Patent 

    Patent/Registration no:特許第6012011号 

    既設の縦スリット直立消波工に発電システムを設定することによって,港湾海域において波力発電を効率的にお来ぬ波力発電システムを提供する.

  • 閉鎖性水域における人工排熱処理システム

    中尾正喜・西岡真稔・鍋島美奈子・矢持進・重松孝昌・遠藤徹・貫上佳則・森信人

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    property_type:Patent 

    本発明は,家屋・発電所等の建物から発生する人工排熱を閉鎖性水域に排出する人工排熱処理システムである.本発明の人工排熱処理システムは,閉鎖性水域外の底層低温水を冷凍機用凝縮器や蒸気タービン用復水器等への冷却水等として活用することで,ヒートアイランド現象の加速に足止めをかけるとともに,熱交換後の温度上昇した海水を鉛直混合の促進に有効利用することで,閉鎖性水域内の低層部の貧酸素水を改善することを目的とするものである.

  • 濁りおよび流動を抑制する土砂の投入方法とその装置

    重松孝昌・金澤剛・吉田泰雄・鶴ヶ崎和博・森田研志

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    property_type:Patent 

    本発明は,トレミー工法において土砂投入時に発生する流動を抑制すると共に濁りの発生・拡散を抑制することを目的とするものである.具体的には,トレミー管の下端部に水平又は酢田向きに膜又は薄版を取り付けることにより,土砂投入により誘起される浚渫窪地内の水塊の流動や濁水の舞い上がりを抑制しようとするものである.

  • 堤体

    小田 一紀・重松 孝昌・巻幡 敏秋・田中 洋・武田 純男・藤田 孝

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    property_type:Patent 

    Application no:特願2002-84636(P2002-84636) 

    Announcement no:特開2003-278125(P2003-2781525A) 

    Publication no:特開2003-278125(P2003-2781525A) 

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Collaborative research (seeds) keywords

  • 波力発電

    Category:Green Technology 

  • 沿岸環境修復技術

    Category:Green Technology 

  • 都市防災

    Category:Civil Engineering / Architecture 

Outline of collaborative research (seeds)

  • 水域(かわ,うみ)の環境構造の改善

    随時

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    Request for collaborative research:The private sector, such as other institutions

    Type of research exchange:Technical consultation, Contract research, Joint research

    Application fields / methods etc:河川,港湾海域など,比較的身近な水域における環境(水質)を改善する.

    河川,港湾海域など,比較的身近な水域における環境(水質)を改善する.

  • 流体運動の可視化

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    Type of research exchange:Technical consultation, Contract research, Joint research

  • Prediction of motionof granular material

    いつでも可能

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    Type of research exchange:Technical consultation

  • 流体および混相流体の運動計測

    随時

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    Request for collaborative research:The private sector, such as other institutions

    Type of research exchange:Contract research, Joint research, Lecture

    Application fields / methods etc:粉体のコーティング技術など,広く固気・固液混相流体に関わる産業分野で,利活用が可能.

    高速度ビデオ画像撮影システムを用いた,高精度流体運動解析システムの開発

Grant-in-Aid for Scientific Research

  • 間隙のコネクティビティが流動のアップスケーリング効果に及ぼす影響の解明

    Grant-in-Aid for Scientific Research(B)  2019.04

  • 波動場における多孔質体内の局所流動がエネルギー減衰および物質輸送に及ぼす影響

    Grant-in-Aid for Scientific Research(C)  2017.04

  • 多孔質体間隙構造解析とそれに基づく乱れの生成メカニズムの解明に関する基礎研究

    Grant-in-Aid for Scientific Research(B)  2016.04

  • 多孔質体生成乱流の三次元計測手法の開発とそれに基づく新たな乱流モデリングの提案

    Grant-in-Aid for Scientific Research(C)  2010.04

  • Restorationof the hydrosphere and atmosphere in coastal cities utilizing the thermal potential of sea water

    Grant-in-Aid for Scientific Research(B)  2008.04

  • Multi-phase dynamics for high-resolution computation of surf zone

    Grant-in-Aid for Scientific Research(B)  2003.04

  • Development of measurement method for investigating three dimensional turbulence structures in liquid-slid flow

    Grant-in-Aid for Scientific Research(B)  2003.04

  • Hydraulic characteristic on flow field and sediment movement inside and outsideseagrass fields

    Grant-in-Aid for Scientific Research(C)  2002.04

  • Study on Air-Sea Gas Transfer at Natural Coast

    Grant-in-Aid for Scientific Research(C)  1996.04

  • 新しい固液混相流数値解析法(DEMAC法)による土砂粒子群の沈降分散挙動の解析

    科学研究費補助金 奨励研究(A)  1991.04

  • A Basic Study on the Seawater Purification Function of the Biofilm Process Method and Its Strengthening

    1991.04

  • 環境変動に対する生物応答を予測する生態系モデルの構築

    Grant-in-Aid for Scientific Research(B)  1900.04

  • Restoration of an ecosystem in the eutrophicated shallow estuary -dynamics of environments and benthic fauna at the experimental artificial tidal flat-

    Grant-in-Aid for Scientific Research(B)  1900.04

  • A Study on the Design Method of Flexible Curtain Structures Mooredunder Storm Wave and Current

    Grant-in-Aid for Scientific Research(B)  1900.04

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Joint research

  • 流れに起因する膜体変形の計算手法に関する基礎研究

    東亜建設工業株式会社技術研究開発センター  2018.09

Contract research

  • スリット式防波堤を利用したミニ波力発電システムの開発

    競輪とオートレース財団  機械振興補助事業  2023.04

Other subsidies, etc.

  • サイエンスカフェ(防災研究座談会)

    公益財団法人セコム科学技術振興財団  2018.10

  • 東北地方太平洋沖地震津波から学ぶ南海・東南海地震津波対策に関する共同研究

    未設定  2012.04

  • 防波堤を利用した波力発電システムの開発  

    未設定  2011.10

Outline of education staff

  • 全学共通教育では,「大阪の都市づくり」「コミュニティ防災」を通して都市の水辺空間とアメニティ,水防災についての基礎知識を講義している.専門教育では,2年生に提供している「基礎流体力学」,「水理学」を担当して,流体に関する基礎知識を享受するとともに,3年生に提供している「水防災工学」においてはこれらの知識の実務レベルの活用法について教授している.また,1年生に提供している「都市学入門」においては文章の読み方・書き方・プレゼンテーションなどの学び方・伝え方を教授し,2年生提供の「都市学演習Ⅲ」ではプログラミングを通じて論理的思考能力の養成に努めている.大学院では,川や海の防災や環境に関わる高度かつ実践的な知識の習得に向けた講義・演習科目を担当している.

Charge of on-campus class subject

  • 大阪の都市づくり

    2022     Undergraduate

  • 基礎流体力学

    2021     Undergraduate

  • プログラミング演習

    2021     Undergraduate

  • コミュニティ防災

    2021     Undergraduate

  • 特別演習(河海環境構造工学)

    2021     Graduate school

  • 水理学

    2021     Undergraduate

  • 流体環境・水防災工学特論

    2021     Graduate school

  • 基礎流体力学

    2020     Undergraduate

  • プログラミング演習

    2020     Undergraduate

  • コミュニティ防災

    2020     Undergraduate

  • 水防災工学

    2020     Undergraduate

  • 特別演習(河海環境構造工学)

    2020     Graduate school

  • 流体環境・水防災工学特論

    2020     Graduate school

  • 水理学

    2020     Undergraduate

  • 流体環境・水防災工学特論

    2019     Graduate school

  • プログラミング演習

    2019     Undergraduate

  • 都市学演習3

    2019     Undergraduate

  • 都市学総論

    2019     Undergraduate

  • 都市学入門

    2019     Undergraduate

  • 水理学

    2019     Undergraduate

  • 基礎流体力学

    2019     Undergraduate

  • 大阪の都市づくり

    2019     Undergraduate

  • コミュニティ防災

    2019     Undergraduate

  • 特別演習(河海環境構造工学)

    2019     Graduate school

  • 大阪の都市づくり

    2018     Undergraduate

  • 水理学

    2018     Undergraduate

  • 都市学入門

    2018     Undergraduate

  • 水防災工学

    2018     Undergraduate

  • 特別演習(河海環境構造工学)

    2018     Graduate school

  • コミュニティ防災

    2018     Undergraduate

  • 基礎流体力学

    2018     Undergraduate

  • 都市学演習Ⅲ

    2018     Undergraduate

  • 流体環境・水防災工学特論

    2018     Graduate school

  • 水理学

    2017     Undergraduate

  • 都市学入門

    2017     Undergraduate

  • ゼミナール

    2017     Graduate school

  • 前期特別研究

    2017     Graduate school

  • コミュニティ防災

    2017     Undergraduate

  • 特別演習(河海環境構造工学)

    2017     Graduate school

  • 流体環境・水防災工学特論

    2017     Graduate school

  • 都市学演習Ⅲ

    2017     Undergraduate

  • 水防災工学

    2017     Undergraduate

  • 基礎流体力学

    2017     Undergraduate

  • 海岸・港湾工学(神戸大学:非常勤講師)

    2016     Undergraduate

  • 水理学

    2016     Undergraduate

  • 水防災工学

    2016     Undergraduate

  • 安全防災工学

    2016     Undergraduate

  • 流体環境・水防災工学特論

    2016    

  • 特別演習(河海環境構造工学)

    2016    

  • 前期特別研究

    2016    

  • ゼミナール

    2016    

  • 後期特別研究

    2016    

  • コミュニティ防災

    2016     Undergraduate

  • 大阪の都市づくり

    2016     Undergraduate

  • 基礎流体力学

    2016     Undergraduate

  • 都市学演習Ⅲ

    2016     Undergraduate

  • 都市学実験

    2016     Undergraduate

  • 海岸・港湾工学(神戸大学工学部)

    2016     Undergraduate

  • 地域実践演習(GATSUN)Ⅱ

    2015     Undergraduate

  • 流体環境・水防災工学特論

    2015    

  • コミュニティと防災

    2015     Undergraduate

  • 基礎流体力学

    2015     Undergraduate

  • 都市学演習Ⅲ

    2015     Undergraduate

  • 都市学実験

    2015     Undergraduate

  • 物質・熱移動学

    2015     Undergraduate

  • 地圏環境工学

    2015     Undergraduate

  • 水理学

    2015     Undergraduate

  • 安全防災工学

    2015     Undergraduate

  • 大阪の都市づくり

    2015     Undergraduate

  • 前期特別演習

    2014    

  • 特別演習(河海環境構造工学)

    2014    

  • 流体環境・水防災工学特論

    2014    

  • 都市学入門

    2014     Undergraduate

  • 環境都市工学演習3

    2014     Undergraduate

  • 基礎流体力学

    2014     Undergraduate

  • 物質・熱移動学

    2014     Undergraduate

  • 安全防災工学

    2014     Undergraduate

  • 都市学実験A

    2014     Undergraduate

  • 都市学実験B

    2014     Undergraduate

  • 地圏環境工学

    2014     Undergraduate

  • 地域実践演習

    2014     Undergraduate

  • 前期特別研究

    2013    

  • 大阪のまちづくり

    2013     Undergraduate

  • 地圏環境工学

    2013     Undergraduate

  • 都市学総論

    2013     Undergraduate

  • 安全防災総合演習

    2013     Undergraduate

  • 都市学実験B

    2013     Undergraduate

  • 安全防災工学

    2013     Undergraduate

  • 物質・熱移動学

    2013     Undergraduate

  • 基礎流体力学

    2013     Undergraduate

  • 環境都市工学演習3

    2013     Undergraduate

  • 都市学入門

    2013     Undergraduate

  • 流体環境・水防災工学特論

    2013    

  • 特別演習(河海環境構造工学)

    2013    

  • 前期特別研究

    2012    

  • 流体環境・水防災工学特論

    2012    

  • 特別演習(河海環境構造工学)

    2012    

  • 都市学入門

    2012     Undergraduate

  • 環境都市工学演習3

    2012     Undergraduate

  • 基礎流体力学

    2012     Undergraduate

  • 物質・熱移動学

    2012     Undergraduate

  • 安全防災工学

    2012     Undergraduate

  • 都市学実験B

    2012     Undergraduate

  • 安全防災総合演習

    2012     Undergraduate

  • 都市学総論

    2012     Undergraduate

  • 地圏環境工学

    2012     Undergraduate

  • 大阪の都市づくり

    2012     Undergraduate

  • 前期特別研究

    2011    

  • 物質・熱移動学

    2011     Undergraduate

  • 水理学

    2011     Undergraduate

  • 基礎流体力学

    2011     Undergraduate

  • 環境都市工学演習3

    2011     Undergraduate

  • 都市学入門

    2011     Undergraduate

  • 安全防災工学

    2011     Undergraduate

  • 特別演習(河海環境構造工学)

    2011    

  • 流体環境・水防災工学特論

    2011    

  • 海岸・港湾工学

    2011     Undergraduate

  • 環境海岸工学

    2011     Undergraduate

  • 地圏環境工学

    2011     Undergraduate

  • 都市学総論

    2011     Undergraduate

  • 安全防災総合演習

    2011     Undergraduate

  • 都市学実験B

    2011     Undergraduate

▼display all

Charge of off-campus class subject

  • 海岸工学

  • 水理学

  • 海岸工学

  • 海洋システム特殊講義

  • 海岸・港湾工学

Faculty development activities

  • FD活動への貢献  2018

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    Moodleの活用

  • FD活動への貢献  2018

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    工学部FD集会,学科FD集会に参加

  • FD活動への貢献  2018

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    大阪府立大学工学域海洋システム工学科の外部評価委員を務めた

  • FD活動への貢献  2017

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    工学部FD集会,学科FD集会に参加

  • FD活動への貢献  2017

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    大阪府立大学工学域海洋システム工学科の外部評価委員を務めた.

Number of papers published by graduate students

  • 2022

    Number of undergraduate student / college student presentations:Number of graduate students presentations:4

Original item・Special report (Education Activity)

  • 2022

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    Original item:大阪府立東高校の課題研究発表会に、審査員として参加した。

  • 2022

      More details

    Original item:大阪府立高津高校の学生6名を,研究室体験事業として受け入れた(2022.11.07)。

  • 2017

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    Original item:大阪市立東高等学校:座談会「理系の大学で学ぶとはどういうことか,国内外で活躍する人たちから学ぶ将来の展望」(2時間)

  • 2017

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    Original item:大阪市立東高校:課題研究発表会審査委員(4時間)

  • 2017

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    Original item:大阪市立東高校:生徒研究活動発表会評価委員

Social Activities

  • 第18回 海の再生全国会議 in大阪 基調講演

    Role(s): Lecturer

    一般財団法人mなと総合研究財団  第18回 海の再生全国会議 in大阪  オービック御堂筋ビル  2024.02

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    SDGs:

    Audience: Teachers, Researchesrs, General public, Scientific organization, Company, Civic organization, Governmental agency

    Type:Cooperation with government and educational institutions

    Number of participants:224(人)

  • 最近の災害とこれからの気象

    Role(s): Lecturer

    認定NPO法人大阪府高齢者大学校  コーダイ市民公開講座  2023.12

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    SDGs:

    Type:Lecture

  • 大阪市淀川区防災講座

    Role(s): Lecturer

    大阪市淀川区  淀川区役所  2021.09

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    Audience: General public

    Type:Cooperation with government and educational institutions

    Number of participants:20(人)

    風水害への対応に関する防災講義を実施した。

  • 堺市美原区防災講演

    Role(s): Lecturer

    堺市美原区  美原区自主防災連絡協議会防災講習会  堺市美原区役所  2020.09

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    Audience: General public

    Type:Visiting lecture

    Number of participants:50(人)

    「近年の台風・大雨被害と対策」と題して、2回の講演を行った。

  • 住之江区NPO企業交流会

    Role(s): Guest, Commentator, Lecturer

    すみのえ舞昆ホール  2018.11

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    Audience: General public, Company, Civic organization, Governmental agency

    Type:Citizen’s meeting/Assembly

    Number of participants:100(人)

  • 防災士養成講座

    Role(s): Lecturer

    大阪市立大学都市防災教育研究センター  大阪市立大学  2018.09

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    Audience: General public, Governmental agency

    Type:Visiting lecture

    Number of participants:70(人)

  • 住吉区総合防災訓練 防災講座

    Role(s): Lecturer

    大阪市住吉区  大阪市苅田南小学校  2017.11

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    Audience: Schoolchildren

    Type:Visiting lecture

    Number of participants:100(人)

    「水害と非難の流れ」についての授業

  • 防災士養成講座

    Role(s): Lecturer

    大阪市立大学都市防災教育研究センター  大阪市立大学  2017.09

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    Audience: University students, General public

    Type:Visiting lecture

    Number of participants:47(人)

  • 大阪市立東高等学校

    Role(s): Consultant

    大阪市東高等学校  2017.04 - 2018.03

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    Audience: High school students

    Type:Research consultation

    「課題研究」に対するアドバイス・指導・評価を行った.

  • 体験型進路学習

    Role(s): Lecturer

    大阪府立高津高校  2013.07

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    Audience: High school students

    Type:Visiting lecture

▼display all

Visiting Lectures ⇒ Link to the list of Visiting Lectures

  • 最近の災害とこれからの気象 -今,地球はどのように変わりつつあるのか?-

    Category:Engineering (machinery, electronics / physics, electrical / electronics, electrical information, chemical biotechnology, architecture, cities (civil engineering / environment), material chemistry, aerospace, marine systems, applied chemistry, chemistry, materials)

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    SDGs:

    Audience:General, Scientific organization, Civic organization

    Keyword:災害,気象 

    認定NO法人大阪府高齢者大学校のコーダイ市民公開講座での講演.

  • 自然災害から家族や住まいを守る「風水害に備える」

    Category:Engineering (machinery, electronics / physics, electrical / electronics, electrical information, chemical biotechnology, architecture, cities (civil engineering / environment), material chemistry, aerospace, marine systems, applied chemistry, chemistry, materials)

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    SDGs:

    Audience:General

    Keyword:災害,防災,風水害 

    台風うう豪雨などの風水害でどのようなことが起きるのかについて講演

Academic Activities

  • Session chair of the 37th International Conference of Coastal Engineers

    Role(s): Panel moderator, session chair, etc.

    2022.12

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    Type:Academic society, research group, etc. 

Original item・Special report (Social Activity)

  • 2022

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    Original item:国土交通省近畿地方整備局港湾空港部門総合評価委員会委員

  • 2022

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    SDGs:

    Original item:一般財団法人みなと総合研究財団「神戸港における生物共生方策検討会」委員 ・座長

Foreigner acceptance

  • 2023

    International Students :2

  • 2022

    International Students :2

Job title

  • Job title within the department

    Organization for Research Promotion Urban Resilience Research Center 

    所長  2022.04

  • Manager within the university

    Osaka Metropolitan University

    副学長  2022.04

  • Job title within the department

    地域連携センター 

    センター長  2022.04

  • Job title within the department

    文化交流センター 

    所長  2022.04

  • Manager within the university

    Osaka Metropolitan University

    2021.04

Other

  • Job Career

    2010.04

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    Osaka City University

  • Job Career

    2004.04

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    Osaka City University

  • Job Career

    2000.04

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    Osaka City University

  • Job Career

    1988.04 - 2000.03