Effect of Artificial Submerged Sandbar on Hydrodynamics at Zhonghaitan Beach

Abstract:

A wavecurrent coupling model was established based on Delft3D software for Zhonghaitan Beach coastal water and verified by tidal current and wave measurement data. Thus the hydrodynamic changes due to artificial sandbars were modeled and investigated by the verified model. The main conclusions can be drawn as follows: tidal current field only shows changes around the bars since the tidal effect is originally weak in the research area; four sandbars dissipate wave energy and dissipation function increases with incident waves; on the whole, the artificial sandbars reduce the effect of hydrodynamics and contribute to beach maintenance.

Key words:artificial submerged sandbar; hydrodynamics; Delft3D software; wavecurrent coupling