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The interaction of diagonal waves with perforated-wall breakwater partially filled with rock fill is studied using the linear potential theory.By means of the matched eigenfunction expansion method,an analytical method is presented to calculate the reflection coefficient and the wave force coefficient of the breakwater.The calculated results of the reflection coefficient for limiting cases are the same to the existing results.The main effect factors of the reflection coefficient and the wave force coefficient are analyzed by numerical examples.With the increasing of thickness of rock fill,the wave force coefficient on the perforated wall generally decreases,while the reflection coefficient increases.With the increasing of the incident angle of the wave,the reflection coefficient of the breakwater first decreases,reaches its minimum,and then increases monotonously.
The interaction of diagonal waves with perforated-wall breakwater partially filled with rock fill is studied using the linear potential theory. By means of the matched eigenfunction expansion method, an analytical method is presented to calculate the reflection coefficient and the wave force coefficient of the breakwater The calculated results of the reflection coefficient for limiting cases are the same to the existing results. Main factor factors of the reflection coefficient and the wave force coefficient are analyzed by numerical examples .With the increasing of thickness of rock fill, the wave force coefficient of the perforated wall generally decreases, while the reflection coefficient increases .With the increasing of the incident angle of the wave, the reflection coefficient of the breakwater first decreases, reaches its minimum, and then increases monotonously.