The Numerical Simulation of Hydrodynamics in the Sancha River Mouth

Abstract

The sancha river mouth is located at the intersection of qinhuai river and Yangtze river. The flow movement of sancha River mouth are affected by application of sancha river gate and Yangtze River. The flow characteristics of the river mouth is very complex. The numerical simulation is used to study the flow movement. The 2-D depth-averaged mathematical model has been established. The govering equations and numerical simulation of flow movement are given in the boundary-fitting orthogonal coordinate systems. The model verification has done by the field data. The flow movement are computed for different application mode of sancha river gate and Yangtze river level. The mainstream line variation and local inverse flow are analyzed for the sancha river mouth.