摘要:The objective of this work is the simulation of the water depth, flow velocity and sediment transport in the downstream part of the Yangtze River. The two-dimensional hydraulic model MIKE 21FM is used, which has been developed specifically to simulate 2D flows and morphological changes in rivers. The model is based on an orthogonal curvilinear grid. The curvilinear grid and bathymetry files were generated using a very high resolution DEM. The results of the model were 2D maps of flow velocity, water depth, sediment transport and bed level changes. Using the obtained simulation results, extreme hydrological events such as droughts or floods transporting large sediment loads, can be monitored in the study area.