Riverbed variation analysis using discontinuous Galerkin method in two-dimensional shallow water flow

DOI

Bibliographic Information

Other Title
  • 不連続ガラーキン法を用いた二次元浅水長波流れにおける河床変動解析

Abstract

<p>The discontinuous Galerkin (DG) method is effective and promising tool for the hyperbolic equations with discontinuities. In recent years, the DG method has been applied and shown to be effective in the analysis of shallow water equations (SWEs), which are widely used for river flooding, storm surge, tsunami, and other natural disaster simulations. In this study, the DG method is applied to the governing equations for riverbed variation, which are coupling of the SWEs and equilibrium sediment transport equation, and wetting-drying treatment and numerical flux are discussed for our purpose. The proposed method has been verified with numerical analysis such as erodible dam-break flow and sandbar migration simulation. The numerical results have shown that the proposed method is effective for riverbed variation analysis.</p>

Journal

Keywords

Details 詳細情報について

  • CRID
    1390300091973028608
  • DOI
    10.11421/jsces.2024.20241006
  • ISSN
    13478826
    13449443
  • Text Lang
    ja
  • Data Source
    • JaLC
  • Abstract License Flag
    Disallowed

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