摘要
采用非线性波浪时域耦合数值模型计算圆柱物体上的非线性波浪压力和流场波面升高,并进行了圆柱波浪压力的物理模型实验以验证计算结果。计算模型将计算域分为内域和外域:内域为包围圆柱的矩形区域,采用三维Laplace方程,用有限元方法求解;外域为内域外面到四周边界的水域,采用水平二维Boussinesq方程,用有限差分法求解。两域在交界面处相耦合。数值计算结果与实验结果的比较表明,该耦合计算模型具有满意的精度。
A nonlinear time-domain coupled numerical model is adopted to calculate the nonlinear wave pressure acting on a circular cylinder and wave surface elevation. To verify the numerical results, a related model experiment was also conducted. The inner domain surrounding the cylinder is governed by the Laplace equation, which is solved by the finite element method. The other area is the outer domain and is governed by Boussinesq equations, which is solved by the finite difference method. Matching conditions on the interface boundaries between the inner domain and the outer domain are applied to couple the inner and outer domains. The numerical results show good agreement with the experiment results.
出处
《中国海洋平台》
2010年第5期38-44,48,共8页
China offshore Platform
基金
国家自然科学基金资助项目(10672034)
辽宁省教育厅高等学校自然科学基金
