缓坡地形上非线性波浪变形的并行计算  

Parallel computing of nonlinear wave transformation over topography with mild slopes

作　　者：郑永红[1] 游亚戈[1] 沈永明[2] 吴必军[1] 

机构地区：[1]中国科学院广州能源研究所,广东广州510070 [2]大连理工大学海岸和近海工程国家重点实验室,辽宁大连116023

出　　处：《水科学进展》2003年第3期328-332,共5页Advances in Water Science

基　　金：国家自然科学基金资助项目(59979025);863计划资助项目(2001AA516010);国家杰出青年科学基金资助项目(50125924);广州能源研究所所长创新基金资助项目

摘　　要：基于椭圆型缓坡方程和消息传递接口机制,提出了缓坡地形上非线性波浪变形的一种并行数值模拟方法,并在微机群集并行系统上进行了数值实现。对一种典型缓坡地形上的非线性波浪传播变形进行了数值模拟,数值结果与实验数据的比较表明,在椭圆型缓坡方程中应用非线性波色散关系可有效考虑波浪的非线性效应,同时从获得的并行效率和并行加速比来看,并行数值方法可有效提高数值模拟效率。Based on the elliptic mild slope equation and the Message Passing Interface (MPI), a parallel solution method is proposed for the simulation of nonlinear wave transformation over a topography with mild slopes, and implemented numerically on a personal computer (PC) cluster The nonlinear wave transformation over a typical topography with mild slopes is simulated A comparison of numerical results with experimental data shows that the application of the nonlinear dispersion relation to the elliptic mild slope equation can effectively take the nonlinear effect into account It can also be seen from the parallel efficiency and speedup rate that the parallel solution method proposed in the present paper can effectively increase the efficiency of numerical simulations

关 键 词：缓坡地形 非线性水波 椭圆型缓坡方程 微机 群集系统 数值模拟 

分 类 号：O353.2[理学—流体力学]