砂州が誘起する擬似蛇行現象

• UDDIN Md Jahir

  北海道大学

• 泉 典洋

  北海道大学

• 長谷川 和義

  北開水工コンサルタント(株）

• PORNPROMMIN Adichai

  カセサート大学

書誌事項

タイトル別名

• QUASI-MEANDERING INDUCED BY FLUVIAL SAND BARS

抄録

Linear stability analysis of the formation of fluvial sand bars with bank erosion is performed with the use of St.Venant shallow water equations and continuity equation, and a process-based bank erosion model. The process-based bank erosion model is derived from the integration of sediment continuity equation in the bank region. The time variation of bank locaion is proportional to the lateral sediment transport rate at the junction between bed and bank regions, which is evaluated by the lateral sediment transport rate in the bank region. and the time variation of the bed elevation at the junction. It is found from the analysis that quasi-meandering with the wavelength slightly shorter than bars takes place with the formation of bars in the range of moderately large aspect ratios.

収録刊行物

• 土木学会論文集Ｂ１（水工学）

  土木学会論文集Ｂ１（水工学） 71 (4), I_1021-I_1026, 2015

  公益社団法人 土木学会

キーワード

• 砂州
• 蛇行
• 河岸浸食
• 線形安定度解析

詳細情報

• CRID: 1390282680328789888
• NII論文ID: 130005123476
• DOI: 10.2208/jscejhe.71.i_1021
• ISSN: 2185467X
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/71/4/71_171/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可