Department of Mechanics;
Beijing Institute of Technology;
Beijing 100081;
China;
Changjiang Survey Planning Design and Research Co.;
Ltd(CSPDR);
Wuhan 430010;
China;
Changjiang River Scientific Research Institute;
Wuhan 430015;
China;
Department of Ocean Engineering;
Ocean College;
Zhejiang University;
Hangzhou 316021;
China;
State Key Laboratory of Water Resources and Hydropower Engineering Science;
Wuhan University;
Wuhan 430072;
China;
Two-dimensional coupled model; Well-conserved; Unstructured grids; Finite-volume algorithm; Erodible bed; Central model;