摘要
本文针对弹性波波场传播的数学模型 ,提出了一种基于有限元和有限差分耦合的区域分裂方法 .它有灵活的网格剖分 ,克服了单纯用差分方法对区域的依赖性 ,可以适用于曲边地表 ;达到同样精度所需的计算量比有限元方法小 ;并易于实现并行计算 .
We propose a domain decomposition method based on combining the finite element method with the finite difference method for numerical simulation elastic wave propagation.The domain decomposition does not rely on the shape of computing region and is convenient to deal with irregular surface problems.The computational efficiency is raised.In addition,the idea of the domain decomposition method is easy to be implemented by the parallel computing programs.The results of numerical experiments have confirmed the effectiveness of the method.
出处
《地球物理学报》
SCIE
EI
CAS
CSCD
北大核心
2004年第6期1094-1100,共7页
Chinese Journal of Geophysics
基金
国家自然科学基金 ( 4 0 0 740 3 1)资助
关键词
区域分裂方法
有限差分方法
有限元方法
曲边地表
并行计算
弹性波
Domain decomposition method, Finite difference method, Finite element method, Irregular surface, Parallel computing, Elastic wave.
