Author(s)

J.-C. Yang & C.-I. Wu

Abstract

Sediment transport modeling by coupling technique J.-C. Yang, C.-I. Wu Department of Civil Engineering, National Chiao Tung University, Hsinchu, Taiwan Abstract A coupled mobile-bed model which is capable of simulating the water movement and bed evolution in an alluvial channel was developed in this study. This model attempts to couple the water continuity equation, water momentum equation,sediment continuity equation, and hydraulic sorting equation. The governing equations are discretized by the use of the Preissmann's four-point scheme. This coupled model was examined through the comparison with some experimental data sets. From the results, one can conclude that this newly proposed coupled model can reasonably simulate the water and nonuniform sediment movements in a channel. Introduction The numerical model has been recognized to be an efficient tool for studying the sediment transport phenomenon in a natural streams. Many unsteady mobile bed models

Keywords