Abstract
A 2-dimensional numerical method for the simulation of reservoir sedimentation due to wash load, which is based on a 3-dimensional model for the flow and sediment concentration is presented, Firstly the validity of the equation of the entrainment rate was discussed with a 1-dimensional simulation of reservoir sedimentation. Secondly the 2-dimensional model was applied to a simulation of reservoir sedimentation in a field. The main and secondary flows in a non-uniform channel were calculated precisely and the distribution of the simulated deposition depth was in good a greement with the observed data.
