S. Ju. Mihajlichenko, E.V. Ivancha
Marine Hydrophysical Institute of RAS, Sevastopol, Russia
Abstract
The paper is dedicated to interaction of surface gravitational waves with a breakwater in the form of a vertical wall located in the center of a model basin of variable depth. The basin bottom relief schematically represents the coastal zone, the breakwater acts as a coast protection structure. Six numerical experiments were made with different distances from the crest of the breakwater to the level of the unperturbed liquid surface. It was shown that when surface waves interact with a breakwater in all numerical experiments, the wave field transforms and zones of both weakened and enhanced waves form in the basin. The values of wave transformation coefficient and orbital velocities of the fluid averaged over the depth were calculated.
Keywords
non-hydrostatic SWASH model, surface waves, breakwater, wave heights, transformation coefficient, orbital velocities averaged over depth