Interaction between oblique waves and perforated caisson breakwaters with perforated partition walls

Abstract

This study gives an analytical solution for oblique wave interaction with perforated caisson breakwaters having perforated partition walls. The periodic boundary conditions of the velocity potential and its derivative in the caisson length direction are incorporated into the solution. A velocity potential decomposition method is used to obtain velocity potentials inside caisson chambers. The newly developed analytical solution is confirmed by the solutions for several special cases of the present breakwater and an independently developed multi-domain boundary element method solution for the present problem. The analytical solution is also validated by experimental data. The reflection coefficients, the wave forces and the surface amplitudes near the breakwater are examined, and some useful results are presented. This study may give a better understanding of the effect of perforated partition walls on the hydrodynamic performance of perforated caisson breakwaters.