On the Computational Modelling of Overland Flood Flows

DOI

Bibliographic Information

Other Title
  • 洪水氾濫モデルに関する二, 三の考察

Abstract

The numerical diffusion of the shallow water model for the overland flood flow and its ap-plicability to the 1983 flood in the Misumi River, Shimane prefecture, are discussed. The calculated results for the flood flow and sedimentation on the flood plain fairly agree with the observed flood mark and fluvial processes of gravel materials due to bed load. The sedimentation by fine suspended load, however, was difficult to simulate because of uncertainty for the inflow sediment constitution and the effect of vegetation on overland flood flow. In order to modify the disadvantage of this primitive model for the computa-tional time and stability of the calculation, the vorticity model is introduced and shows several calculated results of velocity distributions in the simplified overland flood flow.

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Details 詳細情報について

  • CRID
    1390001205362327680
  • NII Article ID
    130003841229
  • DOI
    10.2208/prohe1975.33.337
  • ISSN
    18849164
    09134131
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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