| Second-Order Potentials and Forces for Two-Dimensional Diffraction Problem of Finite Water Depth |
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| 作者单位： | Duan Wenyang and He Wuzhou Graduate student，Department of Naval Architecture and Ocean Engineering，Harbin Engineering University，Harbin 150001 . Associate Professor，Department of Hydraulic Engineering，Tsinghua University |
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| 摘 要： | -In this paper, an analytical solution in the outer region of finite water depth is derived for the second-order diffraction potential, which gives a clear physical meaning of the wave transmission and reflection characteristics in the far field. A numerical method-simple Green's function technique-for calculating the second-order diffraction potential in the inner region is also described. Numerical results are provided for the second-order wave forces on a semi-submerged cylinder. It is found that the contribution of second-order diffraction potential to second-order wave forces is important. The effect of water depth and submerged depth on the wave force is also discussed.
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Second-Order Potentials and Forces for Two-Dimensional Diffraction Problem of Finite Water Depth |
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| Authors: | Duan Wenyang and He Wuzhou Graduate student |
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| Institution: | Duan Wenyang and He Wuzhou Graduate student,Department of Naval Architecture and Ocean Engineering,Harbin Engineering University,Harbin 150001 . Associate Professor,Department of Hydraulic Engineering,Tsinghua University |
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| Abstract: | -In this paper, an analytical solution in the outer region of finite water depth is derived for the second-order diffraction potential, which gives a clear physical meaning of the wave transmission and reflection characteristics in the far field. A numerical method-simple Green's function technique-for calculating the second-order diffraction potential in the inner region is also described. Numerical results are provided for the second-order wave forces on a semi-submerged cylinder. It is found that the contribution of second-order diffraction potential to second-order wave forces is important. The effect of water depth and submerged depth on the wave force is also discussed. |
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| Keywords: | second-order diffraction potential second-order wave forces |
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