Abstract

This paper deals with the numerical analysis of channel processes by a numerical model with the non-equilibrium sediment transport for bank erosion. It is important to calculate the scouring volume near the brink of channel bank in sufficient accuracy for the analysis of the channel processes with bank erosion. As the bank erosion occurs intermittently in associating with the bank failure, the nonequilibrium sediment transport is dominant near the water edge. Therefore, we developed the numerical model introducing the nonequilibrium sediment transport for the bank erosion, and applied it to the deformation processes of straight and meandering channels. The model is verified by comparing the calculated results with the observed ones.

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