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

透水与不透水丁坝明渠水流输沙三维机制研究

• 批准号: 21760383
• 负责人: AKAHORI Ryosuke
• 金额: $ 2.41万
• 依托单位: Public Works Research Institute (2010-2011)Tokyo Institute of Technology (2009)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760383/
• 关键词: 水制; 浮遊砂; LES; 粒子的手法; 数値計算; PIV; 浮游砂

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.

本文对丁坝周围水流结构和泥沙输移机理进行了研究，旨在加深对丁坝设施环境应用的认识。通过对试验结果的图像分析，阐明了水流和泥沙运动的三维结构。结果表明，透水丁坝尾流和淹没丁坝溢流对泥沙悬浮起着重要作用。在此基础上，建立了一个能较好地模拟透水堤周围含沙量分布的悬沙输移数学模型。

项目成果

Numerical calculation of three-dimensional flows in an open channel with a rubble mound groin by using Non-Darcian resistance law

基于非达尔西阻力定律的带碎石丘腹股沟的明渠三维流动数值计算

• 发表时间: 2009
• 期刊: Journal of Hydroscience and Hydraulic Engineering
• 作者: Ryosuke AKAHORI;Kohji MICHIOKU
• 通讯作者: Kohji MICHIOKU

越流型水制周辺での流れ場の構造と浮遊砂輸送

溢流坝周围的流场结构和悬浮泥沙输送

• 发表时间: 2012
• 期刊: 土木学会論文集B1(水工学)
• 作者: 赤堀良介;松尾陽介;吉村千洋
• 通讯作者: 吉村千洋

透過水制群周辺における浮遊砂の輸送に関する研究

渗透水系统悬浮泥沙运移研究

• 发表时间: 2010
• 作者: 赤堀良介;池田駿介;Gu Zu-peng
• 通讯作者: Gu Zu-peng

Study on open channel flow with a submerged structure

水下结构明渠水流研究

• 发表时间: 2009
• 作者: Ryosuke AKAHORI;Yosuke MATSUO;Syunsuke IKEDA
• 通讯作者: Syunsuke IKEDA

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

溢流式防渗坝明渠水流试验研究

• 发表时间: 2009
• 作者: 松尾陽介;赤堀良介;池田駿介
• 通讯作者: 池田駿介