DOMAIN DECOMPOSITION WITH NON-MATCHING GRIDS FOR COUPLING OF FEM AND NATURAL BEM

被引:0
|
作者
YANG Ju’e HU Qiya YU Dehaot (LSEC
机构
基金
中国国家自然科学基金;
关键词
Domain decomposition; non-matching grids; natural boundary reduction; multiplier space; error estimate; D-N alternating algorithm; convergence;
D O I
暂无
中图分类号
O175.8 [边值问题];
学科分类号
070104 ;
摘要
In this paper, we introduce a domain decomposition method with non-matching grids for solving Dirichlet exterior boundary problems by coupling of finite element method (FEM) and natural boundary element method(BEM). We first derive the optimal energy error estimate of the nonconforming approximation generated by this method. Then we apply a Dirichlet-Neumann(D-N) alternating algorithm to solve the coupled discrete system. It will be shown that such iterative method possesses the optimal convergence. The numerical experiments testify our theoretical results.
引用
收藏
页码:529 / 542
页数:14
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