低反射壁を有する動揺式防波堤の波浪制御効果について

抄録

A pendulum-type breakwater partly consisting of peoforated walls was used as a model breakwater. By varying the mooring line constants, peoformance of the breakwater, such as wave transmission and reflection coefficients as well as dynamic displacements, was examined extensively, In order to be able to attenuate long waves, a method of reducing incoming waves through the use of radiation waves was discussed. It was clarified that the pendulum-type breakwater with porous walls is very effective for reducing long waves when the breakwater is moored by comparatively slack tethers.