A two dimensional numerical model of suspended sediment transport using in the radial sand ridge field

For the evolution of the coastal, suspended sediment transport is an important factor. A large amount of suspended sediments transported under the wave and current action in the radial sand ridge field of the South Yellow Sea. This article introduces a numerical model which has adaptability to the complex border and the FVM (Finite Volume Method) conservation character. The character of this model use triangular grid and the second-order Roe-type upwind format to solve the two-dimensional suspended sediment transport equation. The triangular grid FVM has quasi steady characteristics. The suspended sediment transport model with well-balanced performance in discretization the source terms, and incorporate upwind numerical fluxes. Roe-Sweby limiter maintains the monotonicity and oscillation suppression of reconstruction. The suspend sediment concentration data from experiment in the radial sand ridge field of South Yellow Sea were use to verify the suspended sediment transport model, and the results show it is fine.