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Investigation of dynamic mechanisms near river beds employing a numerical mixed-size movable-bed channel with arbitrary shaped particles

Research Project

Project/Area Number 25630211
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Hydraulic engineering
Research InstitutionChuo University

Principal Investigator

FUKUOKA SHOJI  中央大学, 公私立大学の部局等, 機構教授 (30016472)

Co-Investigator(Kenkyū-buntansha) UCHIDA Tatsuhiko  中央大学, 研究開発機構, 機構准教授 (00379900)
FUKUDA Tomoo  中央大学, 研究開発機構, 機構助教 (00709694)
長田 健吾  阿南工業高等専門学校, その他部局等, 准教授 (30439559)
Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords石礫河川 / 数値移動床水路 / 河床変動 / 混合粒径 / 粒子形状 / 流体力 / 流砂量 / 可視化 / 粒度分布 / 河床構造 / 大規模計算
Outline of Final Research Achievements

We developed a numerical movable-bed channel capable of simulating three-dimensional motions of flows and gravel particles in different shapes. Flow and gravel motions and forces exerting them that have been difficult to measure were predicted by numerical movable-bed experiments. The result of the experiments showed that large particles were nearly in rectilinear motions in upper positions on the bed surface and small particles took detours in the lower positions. It was also showed that relatively large particles affected greatly by their shapes in motion and settlement.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (9 results)

All 2014 2013

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 1 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] Effects of sizes and shapes of gravel particles on sediment transports and bed variations in a numerical movable-bed channel2014

    • Author(s)
      Fukuoka, S., Fukuda, T. and Uchida, T.
    • Journal Title

      Advances in Water Resources

      Volume: Vol.72 Pages: 84-96

    • DOI

      10.1016/j.advwatres.2014.05.013

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of Particle Collisions on Motions of Mixed-size Particles and Bed Structures2014

    • Author(s)
      Fukuda, T. and Fukuoka, S.
    • Journal Title

      Proceedings of International Conference on Fluvial Hydraulics, River Flow, Lausanne, Switzerland

      Volume: 2014 Pages: 799-807

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical movable bed channels required for investigation of various sizes and shapes particle motions in gravel bed rivers2014

    • Author(s)
      Fukuda, T. and Fukuoka, S.
    • Journal Title

      The 1st international conference on computational engineering and science for safety and environmental problems, Sendai, Japan

      Volume: 2014 Pages: 223-226

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 石礫粒子群の運動および河床構造に及ぼす粒子衝突の効果2014

    • Author(s)
      福田朝生,福岡捷二
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: Vol.70,No.4

    • NAID

      130005070103

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 等価な粒度分布を有する球と石礫で構成される二つの数値移動床上の粒子運動の比較検討2014

    • Author(s)
      田所弾, 福田朝生, 福岡捷二
    • Journal Title

      土木学会論文集B1(水工学)

      Volume: Vol.70,No.4

    • NAID

      130005070104

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] 石礫河川の土砂移動機構を研究するための数値移動床水路の要件2014

    • Author(s)
      福田朝生
    • Organizer
      第69回土木学会年次学術講演会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2014-09-10 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] 水中における斜面崩落数値実験による粒子群の鉛直分級機構の研究2014

    • Author(s)
      田所弾
    • Organizer
      第69回土木学会年次学術講演会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2014-09-10 – 2014-09-12
    • Related Report
      2014 Annual Research Report
  • [Presentation] Prediction of three-dimensional movement of gravel particles in a movable-bed numerical channel2013

    • Author(s)
      S. Fukuoka
    • Organizer
      THESIS 2013
    • Place of Presentation
      Chatou France
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Three-Dimensional Gravel Motions in NumericalMovable Bed Channel with Particles of Various Shapes and Sizes2013

    • Author(s)
      T.FUKUDA
    • Organizer
      Advancesin River Sediment Research, Proceedings of 12th International Symposiumon River Sedimentation, ISRS
    • Place of Presentation
      Kyoto
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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