부유식 방파제의 단면형상 변화에 따른 소파성능 비교 연구

초록

In this study, as fundamental study for shape design of floating breakwater, numerical simulation on a change of wave attenuation performance according to using basic simple cross sectional shapes and combined or deformed shapes were performed and examined. As a numerical simulation method, a computation method based on the MMD(modified marker-density method) were used. The transmission coefficients of the floating breakwaters according to the changes in cross-sectional shape were simulated and compared. To verify the accuracy of numerical methods in this study, the numerical simulation results are compared with those in the previous studies. In order to improve the wave attenuation performance by overcoming the problems which the existing floating breakwater with rectangular cross section causes, numerical simulations have been carried out on the floating breakwaters which have various cross section shapes. This study performed the reverse trapezoidal shape and the hat shape with reference to the previous study. To verify the numerical simulation, a model experiment was performed and compared with the results.