Abstract
Damages due to wave overtopping occur frequently under strong wind conditions. On the other hand, parameters such as wind speed and wind direction are not included in a seawall design. In order to promote a highly integrated land use on coastal areas, a seawall design method that includes wind parameters should be developed. This study investigated the effect of wind speed on each individual wave overtopping that was generated by waves in an irregular wave train. Three types of seawall, upright seawall, wave dissipating type seawall and flared type seawall, were tested in a series of hydraulic experiments that were conducted with two-dimensional wave tank that had a wind blowing tunnel. The volume of water in each individual wave overtopping tended to increase with wind speed. The characteristic of this increasing tendency differed depending on the seawall type and wave condition. Furthermore, this study presented an equation to estimate the ratio of wave overtopping quantity at windy condition to the quantity at no wind condition.
