首页 | 本学科首页   官方微博 | 高级检索  
     检索      

港口非线性波浪耦合计算模型研究
引用本文:王大国,邹志利,唐春安.港口非线性波浪耦合计算模型研究[J].力学学报,2007,39(5):587-594.
作者姓名:王大国  邹志利  唐春安
作者单位:大连大学材料破坏力学数值试验研究中心 大连理工大学海岸和近海工程国家重点实验室 大连理工大学 土木水利学院
基金项目:国家自然科学基金,教育部长江学者奖励计划,香港研究资助局资助项目,辽宁省教育厅资助项目
摘    要:建立了外域用差分法求解高阶Boussinesq方程、内域用边界元法求解Laplace方程的二维船 非线性波浪力时域计算的耦合模型. 研究了该类耦合模型的匹配条件、耦合求解过程和内域、 外域公共区域长度的确定. 该耦合模型计算结果与只用边界元求解Laplace方程模型的计算 结果和实验结果对比表明,该耦合模型不仅计算精度高,而且计算效率快,适用于研究较大 区域内波浪对物体的非线性作用.

关 键 词:耦合模型  非线性波浪力  Boussinesq方程  Laplace方程
文章编号:0459-1879(2007)05-0587-09
收稿时间:2006-08-09
修稿时间:2006-09-01

THE COUPLED NUMERICAL MODEL OF NON-LINEAR WAVE IN HARBOUR
Wang Daguo,Zou Zhili,Tang Chun'an.THE COUPLED NUMERICAL MODEL OF NON-LINEAR WAVE IN HARBOUR[J].chinese journal of theoretical and applied mechanics,2007,39(5):587-594.
Authors:Wang Daguo  Zou Zhili  Tang Chun'an
Institution:1.Research Center for Numerical Tests on Material Failure,Dalian University,Dalian 116622,China;2.The State Key Laboratory of Coastal and Offshore Engineering,Department of Civil Engineering,Dalian University of Technology,Dalian 116024,China;3.School of Civil and Hydraulic Engineering,Dalian University of Technology,Dalian 116024,China
Abstract:An accurate and efficient 2-D time-domain coupled model for nonlinear wave forces on a ship in a harbor is developed in the present paper.The whole domain is divided into an inner domain and an outer domain.The inner domain is the area around the ship,where the flow is expressed by Laplace equations.The other area is the outer domain,where the flow is expressed by Boussinesq equations.Matching conditions on the interface boundaries between the inner domain and the outer domain are the continuity of volume flux and the equality of wave elevations.The procedure of the coupled solution and the length of the common domain are discussed in detail.In addition,the boundary element method in complex variables is adopted to verify the coupled model and the relevant physical experiment is conducted to validate the two numerical models.It is shown that the numerical results agree well with experimental results,but the computational efficiency of the boundary element method is much lower than that of the coupled model,so the coupled model can be used for the wave motions in a harbor with large area and is especially useful for the study on the effects of harbor boundaries and bottoms on wave forces of a ship.
Keywords:coupled model  non-linear wave forces  Boussinesq equations  Laplace equation
本文献已被 维普 万方数据 等数据库收录!
点击此处可从《力学学报》浏览原始摘要信息
点击此处可从《力学学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号