Abstract
In recent years, particle numerical methods which can simulate wave pressure on coastal structures have been developed. Especially, WCSPH method is excellent in repression ability of numerical pressure fluctuation and its light computational load, because the basic equations of WCSPH consider weekly compressible fluid and need not to solve Poisson's equation which generally uses in other particle numerical methods. However, less computation using WCSPH method for coastal structures has been reported and further inspection is required.
In this study, we compared the results computed by WCSPH method to those of experiments for the permeable detached breakwater which has some slits and sloping top. We confirm that the wave pressure and the surface water elevation simulated by WCSPH method well agree with the experimental results. It turns out that the computing particle size needs less than 1/7.2 for the slit size of the structure to realize accurate calculation.
