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2009 Fiscal Year Final Research Report

CLARIFICATION OF INNER STRUCTURE IN COMPOUND OPEN CHANNEL FLOWS AND CONSIDERATION OF DISASTER MEASURES FOR RIVER BANK

Research Project

  • PDF
Project/Area Number 19560523
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 水工水理学
Research InstitutionTokuyama College of Technology

Principal Investigator

WATANABE Katsutoshi  Tokuyama College of Technology, 土木建築工学科, 教授 (00191750)

Project Period (FY) 2007 – 2009
Keywords複断面開水路流れ / 斜昇流 / 大規模水平渦 / 縦渦構造 / 二次流れ / ブランチブロック
Research Abstract

Characteristics of inner structure of oblique upward flow and large-scale horizontal vortex that are characteristic coherent structure of compound open channel flow were investigated experimentally. It was clarified that concentration of streamwise vortex in the vicinity of the edge of flood plain results in the oblique upward flow. And it was found that a group of streamwise vortex over the flood plain is the substance of large-scale horizontal vortex and plays important role of generation of shear instability. The results of experimental approaches of the Branch Brock bank protection (BBbp) show that the BBbp has a function of velocity reduction with coherent structure formed on the surface of the BBbp.

  • Research Products

    (10 results)

All 2010 2009 2008 2007 Other

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (5 results)

  • [Journal Article] 高水敷水深の大きい複断面開水路流れの組織構造の特徴2010

    • Author(s)
      渡辺勝利, 徳光洋輔, 吉永晴香
    • Journal Title

      土木学会水工学論文集 54

      Pages: 955-960

    • Peer Reviewed
  • [Journal Article] ブランチブロック護岸模型の枝材配列形状による流れ構造の特徴2010

    • Author(s)
      渡辺勝利, 吉村隆顕, 原隆, 福田直三, 河内義文
    • Journal Title

      土木学会水工学論文集 54

      Pages: 1045-1050

    • Peer Reviewed
  • [Journal Article] 肩複断面開水路流れに形成された水平渦の内部構造2009

    • Author(s)
      渡辺勝利, 徳光洋輔, 佐賀孝徳
    • Journal Title

      土木学会水工学論文集 53

      Pages: 931-936

    • Peer Reviewed
  • [Journal Article] Characteristics of Coherent Structure in Turbulent Compound Open Channel Flows2007

    • Author(s)
      Takuji Moriyama, Katsutoshi Watanabe
    • Journal Title

      ASV09 (CD-ROM)

  • [Journal Article] Study on inner structure of turbulent open channel flows

    • Author(s)
      Katsutoshi Watanabe, Yousuke Tokumitsu
    • Journal Title

      Proceedings of the 8TH INTERNATIONAL SYMPOSIUM ON PARTICLE IMAGE VELOCIMETRY PIV09 USB

  • [Presentation] 高水敷水深の大きい複断面開水路流れの組織構造に関する研究2009

    • Author(s)
      渡辺勝利, 徳光洋輔
    • Organizer
      可視化情報学会全国講演会
    • Place of Presentation
      山形大学工学部
    • Year and Date
      2009-10-24
  • [Presentation] 高水敷水深が小さい複断面開水路流れの内部構造2008

    • Author(s)
      渡辺勝利, 徳光洋輔, 佐賀孝徳
    • Organizer
      平成20年度土木学会全国大会第36回年次講演会
    • Place of Presentation
      東北大学川内北キャンパス
    • Year and Date
      2008-09-10
  • [Presentation] 複断面開水路の高水敷上に形成された組織構造の特徴2008

    • Author(s)
      渡辺勝利, 徳光洋輔
    • Organizer
      日本流体力学会年会2008
    • Place of Presentation
      神戸大学工学部
    • Year and Date
      2008-09-07
  • [Presentation] 片複断面開水路流れに形成された組織構造の特徴2008

    • Author(s)
      渡辺勝利, 徳光洋輔, 永田能啓, 佐賀孝徳
    • Organizer
      第36回可視化情報シンポジウム
    • Place of Presentation
      工学院大学新宿校舎
    • Year and Date
      2008-07-22
  • [Presentation] 高水敷水深の変化に伴う片複断面開水路流れの特徴2008

    • Author(s)
      徳光洋輔, 渡辺勝利, 佐賀孝徳
    • Organizer
      平成20年度土木学会中国部研究発表会
    • Place of Presentation
      広島大学工学部
    • Year and Date
      2008-05-31

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Published: 2011-06-18   Modified: 2016-04-21  

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