Effect of Longitudinal Slope on Flow Pattern in a Doubly Meandering Compound Channel

DOI
  • Islam G. M. Tarekul
    Division of Social and Envrn. Eng., Graduate School of Eng., Hiroshima University
  • Kawahara Yoshihisa
    Division of Social and Envrn. Eng., Graduate School of Eng., Hiroshima University
  • Tamai Nobuyuki
    Division of Civil and Envrn. Eng., Graduate School of Science and Technology, Kanazawa Universi

Abstract

Natural rivers, being predominantly meandering, are usually composed of a deep main channel and adjacent shallow floodplains. This results in a meandering compound channel. When the main meander channel is flanked by floodplains with meandering levee, it results in a doubly meandering compound channel. This paper explores the effect of bed slope on flow pattern in a doubly meandering compound channel. The effect of slope on the exchange of momentum between main channel and floodplain, flow patterns in the transverse and longitudinal direction, difference in magnitude between maximum and minimum velocities, retardation and deviation of flow fields, the position and strength of eddies and augmentation and reduction of the main channel discharge has been discussed.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001205205902592
  • NII Article ID
    130004257960
  • DOI
    10.2208/journalam.10.903
  • ISSN
    1884832X
    13459139
  • Text Lang
    en
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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