Abstract
Wind effects on wave overtopping are essential in designing seawalls. However, the relationship between wind and wave overtopping rate has not been clarified quantitatively. A numerical wave flume based on a two-dimensional numerical model `CADMAS-SURF' is proposed in this study so that wave overtopping analysis can be conducted considering wind external force. Moreover, a TimerDoor method, which is a computational method for water particle motion, was improved to represent acceleration motion by wind. The proposed method was validated by comparing with a hydraulic model experiment. As a result, numerical results showed that the wind speed affects wave deformation such as wave breaking and mean water level. Furthermore, the dimensionless wave overtopping rates obtained by the numerical computations were in reasonable agreement with the hydraulic model experimental results. It was found that the proposed method is useful for wave overtopping simulation considering wind effects.
