APPLICATION OF 2-D SEDIMENT NUMERICAL MODEL ON PROJECT IN HONGQILI CHANNEL

摘要

The 2-D sediment numerical model is built by using the Environmental Fluid Dynamics Numerical Model considering the boundary conditions. Sediment concentration and deformation of riverbed in this model are verified by the measured data. The change in scour and fill of the project region after the regulation works is calculated and analyzed with the numerical model. The resedimentation of the navigable channel is estimated by the means of combining theories with experiences. It is the supplement of the sediment numerical model. And results and estimation are compared and analyzed.