DEVELOPMENT OF A 1D/2D HYBRID NUMERICAL MODEL FOR RIVERBED DEFORMATION

DOI Web Site

Bibliographic Information

Other Title
  • 平水時と出水時を考慮した一次元・二次元ハイブリッド型河川流・河床変動モデルの開発

Abstract

 This paper presents a new 1D/2D hybrid numerical model for riverbed deformation to reduce a computational load. The 1D model is applied to low water flow without sediment transport, the 2D model is applied to flood flow with sediment transport. Each model automatically switches to the other according to the occurrence of sediment transport. The present model is applied to a long term ordinary flow and a significant flood event in the Saba River. This model is successful in reducing the computational time. The results show a good agreement with the observed water level and the tendency of riverbed deformation.

Journal

Keywords

Details 詳細情報について

Report a problem

Back to top