Rate of Wave Overtopping Broad-Crested Dikes

A semi-empirical method for estimating the rate of wave overtopping broad-crested coastal dikes is established following the application of the standard formulas for the coefficient of discharge of broad-crested weirs. Careful measurements are also made in laboratory to verify the results predicted by the proposed semi-empirical method. It is found that agreement between predictions and experiments is satisfactorily good if the wave height is moderate. However, the prediction losses accuracy for relatively high waves. This is considered to be owing to the omission of the inertia effects in the semi-empirical formulas