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An Improved Numerical Simulation Mode of Nonlinear Wave with Consideration of High Order Terms
Abstract：In this paper the 0-1 combined BEM is adopted to subdivide the computational domain boundary,and to discretize the Greens integral expression based on Laplace equation.The FEM is used to subdivide the wave surface and deduce the surface equation which satisfies the nonlinear boundary conditions on the surface.The equations with potential function and wave surface height as an unknown quantity by application of Taylor expansion approach can be solved by iteration within the time step.In m-time iteration within the computational process of time step (n-1 )△t to n△t,the results of the previous iteration are taken as the initial value of the two-order unknown terms in the present iteration.Thus,an improved tracking mode of nonlinear wave surface is established,and numerical results of wave tank test indicate that this mode is improved obviously and is more precise than the previous numerical model which ignored the two-order unknown terms of wave surface location and velocity potential function in comparison with the theoretical values. 作者： Author： SUN Da-peng[1] BAO Wei-bin[2] WU Hao[1] LI Yu-cheng[1] 作者单位： The State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology,Dalian 116023, ChinaWenzhou Haiwan Marine Transport Project Consultation Design Co., LTD., Wenzhou 325088, China 期 刊： 中国海洋工程（英文版） ISTICEISCI Journal： China Ocean Engineering 年，卷(期)： 2011, 25(4) 分类号： P731.2 Keywords： Laplace equation nonlinear wave 0-1 combined type BEM FEM two order terms 机标分类号： TV1 TN2 机标关键词： Terms High Order Nonlinear Wave Mode of Numerical Simulation wave surface potential function nonlinear boundary conditions numerical results Taylor expansion improved numerical model initial value time application terms comparison velocity step quantity 基金项目： the National Natural Science Foundation of China An Improved Numerical Simulation Mode of Nonlinear Wave with Consideration of High Order Terms[期刊论文] 中国海洋工程（英文版） --2011, 25(4)In this paper the 0-1 combined BEM is adopted to subdivide the computational domain boundary,and to discretize the Greens integral expression based on Laplace equation.The FEM is used to subdivide the...【An Improved Numerical Simulation Mod】相关文章：
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