Lower Regime河床における流れの抵抗則

DOI

書誌事項

タイトル別名
  • Flow Resistance on Lower Regime River Bed

抄録

Flow resistance on lower regime river beds is discussed with the data of Colorado University given by Guy et. al. The Engelund method to estimate the flow depth in an alluvial channel for a given flow discharge is modified for the lower flow regime. The hydraulic conditions to classify flat, ripple, and dune beds are given by the relationship between dimensionless bed shear stress and Reynolds number with respect to sand diameter. Moreover relationships between total and effective bed shear stresses in a dimensionless form are modified for dune bed in the Engelund diagram, and newly proposed for ripple and flat beds, which were not presented in the diagram. The accuracy of flow depth estimation for a given flow discharge with the modified diagram is much improved than without modification.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390001205168578560
  • NII論文ID
    130003841360
  • DOI
    10.2208/prohe.34.427
  • ISSN
    18849172
    09167374
  • 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

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