INTERDEPENDENCE BETWEEN FLOW PATTERN, GEOMETRY AND FLUSHING EFFICIENCY OF IN-GROUND STILLING BASIN

• SHAHMIRZADI M. E. MESHKATI

  Disaster Prevention Research Institute, Kyoto University

• SUMI Tetsuya

  Disaster Prevention Research Institute, Kyoto University

• A. KANTOUSH Sameh

  The German University in Cairo

抄録

This paper investigates the interaction between flow patterns and geometry of in-ground stilling basin (ISB) and its influence on flushing efficiency from ISB. The main governing parameters in our study were the normalized ISB length, drop number, normalized end-sill geometry (height and width), and Froude number. Using large scale particle velcocimetry, we classified the flow patterns into four groups of B-jump, U-jump, Periodic and Steady submerged jump. We found the favorable flow pattern has a positive correlation with drop number, while a negative correlation with relative ISB length. Moreover, the lateral free spaces of the end-sill do not increase the chances for sediment to be flushed out from ISB.

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） 70 (4), I_49-I_54, 2014

  公益社団法人 土木学会

キーワード

• Flow patterns
• hydraulic jumps
• flushing efficiency
• in-ground stilling basin

詳細情報

• CRID: 1390282680330404480
• NII論文ID: 130005070334
• DOI: 10.2208/jscejhe.70.i_49
• ISSN: 2185467X
• 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