Wave Damping Analysis in a Porous Seabed

This study computed numerically wave damping passing over the porous seabed using a boundary element method. The fluid is assumed to be inviscid and incompressible, and the flow is assumed to be irrotational. The analytical domain is formulated mathematically as a non-linear problem in terms of velocity potential. The Darcy?s law is applied to account for the seabed porosity. The pressure and vertical velocity potential in the interface boundary between seabed soil and fluid is assumed to be continuous. The comparison with other results in order to prove the analysis model shows a good agreement in spite of small amplitude wave theory, and also those results obtained by present numerical method show that wave height profiles and horizontal velocities passing over the porous seabed are damped due to porous seabed media. Therefore, numerical analysis method considering porous seabed conditions seems to be more useful. KCI Citation Count: 2