三维电大问题的辅助激励源区域分解算法

Abstract

Abstract:

A novel domain decomposition method (DDM) without resonance based on an auxiliary excitation algorithm is developed for the simulation of three-dimensional (3-D) large-scale electromagnetic problems. To decrease the computational scale and complexity, the original domain is partitioned into several nonoverlapping subdomains. A set of Robin-type auxiliary excitations on the inter-domain interfaces has been introduced to exchange information between subdomains. Because each subdomain can be tackled independently with the vector finite element method, the originally large problem is reduced to a much smaller interface problem. The proposed method becomes very efficient for finite periodic problems by introducing basic subdomains to describe the geometric repetitions.

Key words: domain decomposition method, vector finite element method, auxiliary excitation, finite element tearing and interconnecting (FETI), finite periodic structure

CLC Number:

TN011

Lü Zhi-qing;AN Xiang. Auxiliary excitation algorithm of the domain decomposition method for 3-D large-scale electromagnetic problems[J].J4, 2009, 36(5): 851-856.

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Auxiliary excitation algorithm of the domain decomposition method for 3-D large-scale electromagnetic problems

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