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复杂媒质散射特性的FETI分析 被引量:2

Electromagnetic Scattering of Complex Medium by FETI
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摘要 在分析复杂媒质的电磁场散射特性时,引入有限元撕裂对接法,对包含复杂媒质在内的整个计算空间做区域分解,通过合理的代数运算,将一个三维问题转化为二维问题进行求解,减小计算的复杂度.使用Krylov求解器,避免在形成交界面系统方程时,系数矩阵中的求逆运算.两个算例结果表明有限元撕裂对接法在分析复杂媒质散射特性时的正确性和有效性. Finite element tearing and interconnecting method (FETI) is used in analyzing electromagnetic scattering of complex medium. It decomposes computational space and complex medium. With reasonable operations of algebra, a 3D problem is changed to a 2D problem. It reduces computational complexity. By using Krylov solver, computation of reverse matrix is avoid in the equation about interface system. Numerical results show that the method is accurate and efficient for electromagnetic scattering of complex medium.
机构地区 南京理工大学
出处 《计算物理》 EI CSCD 北大核心 2010年第1期101-106,共6页 Chinese Journal of Computational Physics
基金 国家重点基础研究发展计划973计划(No.2009CB320201) 国家自然科学基金(No.60701003) 江苏省自然科学基金-创新学者攀登项目(No.BK2008048) 中国博士后科学基金(20070411053)资助项目
关键词 有限元撕裂对接法(FETI) 双各向同性媒质 双各向异性媒质 电磁散射 finite element tearing and interconnecting method (FETI) bi-isotropic medium bi-anisotropie medium electromagnetic scattering
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