Abstract
The vertical porous breakwater is one of several applied breakwaters which reveal the dissipation efficiency of breakwater structures at the Mekong river delta. However, determining the breakwater height adapting the dissipation efficiency has not been recently implemented yet. This paper uses the Flow 3D model to simulate the interactions between the vertical porous breakwater and the solitary waves in 36 simulating scenarios. Furthermore, the dissipation efficiency of the vertical porous breakwater for solitary waves depends on the characteristics of the incident, reflected and transmitted waves. The dissipation coefficient analysis method is used to investigate the optimization breakwater height for each specific case.