Simulation of the nonlinear dynamic interactions between waves, a submerged breakwater and the seabed |
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| Authors: | Dong-Soo Hur Chang-Hoon Kim Do-Sam Kim Jong-Sung Yoon |
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| Institution: | aDepartment of Ocean Civil Engineering (Institute of Marine Industry), Gyeongsang National University, Tongyeong 650-160, Republic of Korea;bDepartment of Civil and Environmental Engineering, Korea Maritime University, Busan 606-791, Republic of Korea;cDepartment of Civil Engineering, Inje University, Kimhae 621-749, Republic of Korea |
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| Abstract: | This study employed direct numerical simulation to simulate the fully nonlinear interaction between the water waves, the submerged breakwater, and the seabed under differing wave conditions. In the numerical simulation, the laminar flow condition in the seabed was applied to evaluate the more exact fluid resistance acting on the porous media. Varying incident wave conditions were applied to the flow field resulting from the wave–structure–seabed interaction, and the variation in the pore water pressure beneath the submerged breakwater was investigated along the cross-section of the submerged breakwater. Structural safety and scouring were also considered on the basis of the numerical results for the flow field around the structure and the variation of the pore water pressure. |
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| Keywords: | Direct numerical simulation Wave– breakwater– seabed interaction Maximum pore water pressure Streamline Uplift pressure |
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