Numerical modeling of tidal current in Chiwan sea area after the project of extended jetty

Based on TK-2D software,a whole mathematical model and a local one near Chiwan with irregular triangular grid of tidal current in Lingdingyang sea area were set up.Verification and validation were carried out on the basis of measured data.According to the simulation results,analyses were made on the change of flow field after the project of extended jetty.The study results show that:the change of flow field is around the area of project.The velocity and direction of the flood and ebb tide is almost invariant in 9～13# berth.The velocity and direction of the flood tide and the ebb tide is decreased in the southeast side and increased in the southwest side of the bank-head of the prolonged project.The tidal quantity is invariant.The extended project of jetty is feasible from the point of view of tidal current.