numerical modeling of the Effect of Cylindrical Obstacles on coastal Waves using OpenFOAM
One of the coastal protection techniques is the use of breakwaters. This study aims to investigate the effect of pile breakwaters on coastal waves. These breakwaters are similar to a porous structure. They are preferred over other impenetrable coastal structures due to their increased roughness and resistance to the current, their relatively low cost, economic savings, greater environmental compatibility, and preservation of natural landscapes. Considering rigid cylindrical obstacles on the coast with constant slopes, the effect of their roughness on flow patterns and waves by numerical modeling in OpenFOAM software was investigated. The method used in flow modeling is the RANS method and k-ω, SST model. Modeling was performed in two modes with and without barriers for three different heights of wave. The results were compared with laboratory data. The absorbed force for wave height of 6, 9, and 12 cm in the numerical model was 17.14, 4.23, and 7.86 percent, respectively, with the laboratory model, Also, the mean square root of normal error was 0.07, and the correlation coefficient was 0.99, which indicates the conformity of two numerical and laboratory models and the appropriate performance of Open FOAM software in modeling.
Coast Protection , Pile Breakwater , Wave Energy , K-Ω , SST
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