Abstract

The consideration of transmitted waves by overtopping on coastal breakwaters as well as progressive waves from harbor entrances is of importance to examine in detail and estimate harbor tranquility at high waves. However, the conventional models of wave transformations, such as energy balance equation, wave ray method and so on, cannot compute the influence of the transmitted waves appropriately. The present study is, therefore, aimed at discussing the applicability of a two-dimensional numerical wave flume “CADMAS-SURF” based on the VOF method for transmitted wave phenomena behind an upright breakwater by comparing with hydraulic model experiments under regular and irregular wave actions. As a result, the CADMAS-SURF is found to be capable of reproducing well the experimental results regarding the wave height and frequency spectra of the transmitted waves.

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