Numerical modeling of tidal current and sediment for reclamation project in Huangmaohai Sea

A 2D numerical model of tidal current and sediment is introduced briefly in this paper.The initial-boundary conditions and calculation grid are presented,and the key techniques of the model have been processed.The model has been verified using measured data of spring and medium tides in 1992.The results are satisfying.The model is used to calculate the changes of tidal current and sediment before and after reclamation scheme(E1W2) in Huangmaohai Sea.The results show that the flood-control stress produced by the reclamation project is low in the area,especially along the Yamen waterway,and the influence of the reclamation project on the waterlogging in Yamen and Hutiaomen waterways is trivial.The results also indicate that the tidal current dynamic axis will not be changed significantly by the reclamation project and the stability of the river bank and dyke is still reliable.