Study on three-dimensional mechanisms of flow and sediment transport in open channels with permeable and impermeable spur-dikes

• Project/Area Number: 21760383
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Hydraulic engineering
• Research Institution: Public Works Research Institute (2010-2011); Tokyo Institute of Technology (2009)
• Principal Investigator: AKAHORI Ryosuke 独立行政法人土木研究所, 寒地土木研究所寒地水圏研究グループ寒地河川チーム, 研究員 (50452503)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: 水制 / 浮遊砂 / LES / 粒子的手法 / 数値計算 / PIV / 浮游砂

Research Abstract

The mechanisms of flow structures and sediment transport around spur-dikes were studied in order to extend our knowledge of environmental applications of spur-dike installations. By applying image-analysis methods to experimental results, three-dimensional structures of flow and sediment transport were clarified. The results showed that the wake flow behind permeable dikes and the over-flow on submerged spur-dikes play important roles on sediment suspension. A numerical model of suspended sediment transport that can reproduce sediment concentration profile around permeable dikes was then developed based on the experimental results.

Research Products

• [Journal Article] 越流型水制周辺での流れ場の構造と浮遊砂輸送 (2012)
  • Author(s): 赤堀良介、松尾陽介、吉村千洋
  • Journal Title: 土木学会論文集B1(水工学) Volume: Vol.68, No.4
  • NAID: 130004557823
  • Peer Reviewed
• [Journal Article] 越流型水制周辺での流れ場の構造と浮遊砂輸送 (2012)
  • Author(s): 赤堀良介
  • Journal Title: 土木学会論文集B1(水工学) Volume: 68, No.4 Pages: 1147-1152
  • NAID: 130004557823
  • Peer Reviewed
• [Journal Article] Study on the transport of suspended sediment in an open channel flow with permeable spur dikes (2011)
  • Author(s): Zu-peng Gu, Ryosuke AKAHORI, Syunsuke IKEDA
  • Journal Title: International Journal of Sediment Research Volume: Vol.26 Issue: 1 Pages: 96-111
  • DOI: 10.1016/s1001-6279(11)60079-6
  • Peer Reviewed
• [Journal Article] Study on the sediment transport of suspended sediment in an open channel flow with permeable spur dikes (2011)
  • Author(s): Zu-peng Gu
  • Journal Title: International Journal of Sediment Research Volume: 26(in print)
  • Peer Reviewed
• [Journal Article] 水制周辺における流れの瞬間構造と浮遊砂輸送の関係に関する研究 (2010)
  • Author(s): 谷祖鵬、赤堀良介、池田駿介
  • Journal Title: 混層流 Volume: 23巻5号 Pages: 615-626
  • NAID: 10026130953
  • Peer Reviewed
• [Journal Article] 水制周辺における流れの瞬間構造と浮遊砂輸送の関係に関する研究 (2010)
  • Author(s): 谷祖鵬
  • Journal Title: 混層流 23巻5号 Pages: 615-626
  • Peer Reviewed
• [Journal Article] Numerical calculation of three-dimensional flows in an open channel with a rubble mound groin by using Non-Darcian resistance law (2009)
  • Author(s): Ryosuke AKAHORI, Kohji MICHIOKU
  • Journal Title: Journal of Hydroscience and Hydraulic Engineering Volume: Vol27 No.1 Pages: 89-103
  • NAID: 10029665182
  • Peer Reviewed
• [Journal Article] Numerical calculation of three-dimensional flows in an open channel with a rubble mound groin by using Non-Darcian resistance law (2009)
  • Author(s): Akahori, R.
  • Journal Title: Journal of Hydroscience and Hydraulic Engineering Vol.27 No.1 Pages: 89-103
  • NAID: 10029665182
  • Peer Reviewed
• [Presentation] 越流型水制周辺での流れ場の構造と浮遊砂輸送 (2012)
  • Author(s): 赤堀良介、松尾陽介、吉村千洋
  • Organizer: 第56回水工学講演会
  • Place of Presentation: 愛媛県、松山市
  • Year and Date: 2012-03-08
• [Presentation] 越流型水制周辺での流れ場の構造と浮遊砂輸送 (2012)
  • Author(s): 赤堀良介
  • Organizer: 第56回水工学講演会
  • Place of Presentation: 愛媛大学
  • Year and Date: 2012-03-08
• [Presentation] 透過水制群周辺における浮遊砂の輸送に関する研究 (2010)
  • Author(s): 赤堀良介、池田駿介、Gu Zu-peng
  • Organizer: 日本流体力学会年会2010
  • Place of Presentation: 北海道、札幌市
  • Year and Date: 2010-09-09
• [Presentation] 透過水制群周辺における浮遊砂の輸送に関する研究 (2010)
  • Author(s): 赤堀良介
  • Organizer: 日本流体力学会年会2010
  • Place of Presentation: 北海道大学
  • Year and Date: 2010-09-09
• [Presentation] Study on open channel flow with a submerged structure (2009)
  • Author(s): Ryosuke AKAHORI, Yosuke MATSUO, Syunsuke IKEDA
  • Organizer: The 6th IAHR Symposium on River, Coastal, and Estuarine Morphodynamics
  • Place of Presentation: Santa Fe, Argentina
  • Year and Date: 2009-09-22
• [Presentation] Study on open channel flow with a submerged structure (2009)
  • Author(s): Akahori, R.
  • Organizer: The 6^<th> IAHR Symposium on River, Coastal, and Estuarine Morphodynamics
  • Place of Presentation: Santa Fe, Argentina
  • Year and Date: 2009-09-22
• [Presentation] 越流型不透過水制を有する開水路流れに関する実験的研究 (2009)
  • Author(s): 松尾陽介、赤堀良介、池田駿介
  • Organizer: 土木学会第64回年次学術講演会
  • Place of Presentation: 福岡県、福岡市
  • Year and Date: 2009-09-04
• [Presentation] 越流型不透過水制を有する開水路流れに関する実験的研究 (2009)
  • Author(s): 松尾陽介
  • Organizer: 土木学会第64回年次学術講演会講演概要集
  • Place of Presentation: 福岡県, 福岡市
  • Year and Date: 2009-09-04
• [Remarks] 上記の雑誌論文は上記発表実績内の第56回水工学講演会に対する講演論文集である