STUDIES ON THE WAVE ENERGY DISSIPATION EFFECTS OF A MODIFIED CURTAIN-WALL TYPE SEAWATER EXCHANGEABLE BREAKWATER

Abstract

The seawater exchangeable breakwaters may be useful to exchange the seawater and supply oxygen for improvement and preservation of seawater and sediment quality. In this study, we propose a modified curtain-wall type seawater exchangeable breakwater and examine its performance by physical model tests and numerical simulations Both the damping wave model and the volume of fluid method are employed in numerical simulations. The main feature of a modified breakwater is to place a submerged horizontal plate in the water chamber, which plays an important role to reduce both the reflected and transmitted waves for the wide range of wave frequency. It is also found out that the modified breakwater can cause aeration and vertical mixing by wave actions