CFD ANALYSIS ON THE INFLUENCE OF WAVE OVERTOPPING WITH THE SHAPE CONDITION OF WAVE DISSIPATING STRUCTURE BEFORE THE SEAWALL INDUCED BY SEAWAVE

Abstract

 A coastal area in Hokkaido has damage due to wave overtopping during the winter season. In some regions, a protect fence for wave overtopping is temporarily installed. Although such preventative measures have been taken, damages due to wave overtopping have continued to occur. As a result, permanent measures against wave overtopping must be realized as soon as possible. This study was discussed on the characteristics of wave overtopping with shape condition of wave dissipating structure by using numerical analysis. Although wave dissipating structures are effective in reducing the wave overtopping rate, it may increase the wave run-up height, depending on the particular wave conditions.