Linear water wave damping by a bottom mounted porous structure and by vertical dual porous plates

Abstract

Breakwaters and wave absorbers are structures constructed in the coastal areas to protect harbours inlets and beaches by attenuating incoming wave energy Different types of breakwaters can be constructed such as caisson type breakwaters where the vertical side is backed up with vessels rubble mound breakwaters that consist of different layers of materials preferably sand and gravels on the outermost layer to absorb most of the energy and inner concrete layer in order to block water to trans