The flux difference splitting (FDS) algorithm, an approximate Riemann solver, is employed to estimate the normal fluxes across the interface of cells.

• 采用黎曼近似解通量差分裂(FDS)格式计算通过各单元边的水流、含沙量法向数值通量,并应用相关的悬移质、推移质河床变形计算公式计算冲淤变化。