７．流体力学　　急勾配斜面上におけるガリ形成の線形安定論

• 泉 典洋

  東北大学大学院工学研究科土木工学

書誌事項

タイトル別名

• Linear stability analysis of the gully formation on steep slopes

抄録

A mathematical model of the channelization on steep slopes is presented in this study. A linear stability analysis is performed with the use of the shallow water equations and the Exner equation extended for purely erosional beds. The analysis is found to be similar to that for channelization on mild slopes that the author has presented. The characteristic wavelength associated with the maximum growth rate is of the order of ten times the Froude-critical depth divided by the bed resistance coefficient. The resistance coefficient is estimated of the order of 0.01; thus, the dominant channel spacing is of the order of 1000 times the Froude-critical depth.

収録刊行物

• 応用力学論文集

  応用力学論文集 6 959-966, 2003

  公益社団法人 土木学会

キーワード

• linear stability analysis
• gully formation
• steep slope

詳細情報

• CRID: 1390282680184736128
• NII論文ID: 130004091462
• DOI: 10.2208/journalam.6.959
• ISSN: 1884832X
• ISSN: 13459139
• 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