Wave Overtopping Of Gentle Slope Revetment Placed Behind Artificial Reef

This study deals with wave overtopping on a gentle slope revetment placed behind an artificial reef (wide-crested submerged breakwater). Laboratory experiments were conducted in a wave flume to measure the volume of overtopped water with various conditions of the gentle slope revetment. A time-averaged wave and overtopping model and a numerical wave flume are applied to the prediction of the overtopping rate. The experimental results showed that the long-period wave measured behind the artificial reef influenced the wave overtopping. The time-averaged model is modified to take into account the influence of the long-period wave. The time-averaged model and the numerical wave flume predict the overtopping rate reasonably well in the case of low crest height of the revetment and relatively large overtopping rate.