円柱粗度を有する開水路湾曲部の流れと河床変動の２次元数値解析

機関リポジトリ Web Site

書誌事項

タイトル別名
  • エンチュウ　ソド　オ　ユウスル　カイスイロ　ワンキョクブ　ノ　ナガレ　ト　カショウ　ヘンドウ　ノ　2ジゲン　スウチ　カイセキ
  • 2-Dimensional Numerical Analysis of Flow and Bed Evolution in Open-Channel Bends with Cylindrical Roughness

この論文をさがす

抄録

Vegetation in a river has a similar effect as permeable super dikes. Such an effect can be substituted by a group of cylindrical roughness. In this study, 3-dimensional flow structures and bed evolution were measured in a curved open channel with cylindrical roughness located along the outer bank. A series of cylinder decreased the scour at the outer bank. Especially submerged cylindrical roughness can reduce the bed evolution much more. Flow structures over the submerged cylindrical roughness have 3-dimensional characteristics. The lateral momentum transport due to the secondary flow was modeled from an examination of the experimental data. The mean flow distributions and bed evolution in curved channels with cylindrical roughness are well predicted by using the present 2-D numerical model.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ