Three-dimensional time-harmonic eddy current problems solved by the geometric multigrid preconditioned conjugate gradient method

被引：1
|
作者：
Chen, C. [1 ]
Biro, O. [1 ]
机构：
[1] Inst Fundamentals & Theory Elect Engn, A-8010 Graz, Austria
来源：
IET SCIENCE MEASUREMENT & TECHNOLOGY | 2012年 / 6卷 / 05期
关键词：
EDGE; ELEMENTS; CONVERGENCE;
D O I：
10.1049/iet-smt.2011.0117
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The focus of this study is on the efficient solution for three-dimensional (3D) time-harmonic eddy current problems discretised by the finite-element method (FEM) with thin elements. The systems of equations arising from the finite-element formulations are solved by the geometric multigrid preconditioned conjugate gradient (MGCG) method. Numerical examples show that the MGCG method has stable convergence, which does not deteriorate for elements with high aspect ratios and its computation time is much less than that of the conjugate gradient method with incomplete Cholesky factorisation as the preconditioner (ICCG).
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页码：319 / 323
页数：5
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