Virtual Boundary Element Method in Computational Electromagnetics
Zhang Huaiqing1, Wang Yawei2, Fu Zhihong1
1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China; 2. Shanghai Jiao Tong University Shanghai 200240 China
Abstract：In order to solve the problems of singular integral and boundary layer effects in traditional boundary element method (BEM), the idea of virtual boundary is introduced into this paper. Thus, a new virtual boundary element method (VBEM) for numerical computation of electromagnetic field is formed. In this method, the field points and source points can be set on different boundary, so that the problems of singular integral and boundary layer effects are effectively avoided in the numerical computing process. Meanwhile, the method inherits almost all the advantages of the traditional BEM. The conclusions from numerical examples show that VBEM has higher calculation accuracy than traditional BEM. Then, the paper investigates the influence of the virtual boundary to the accuracy, and the numerical examples show that the influence is small. The VBEM can still acquire satisfactory performance when the shape or size of virtual boundary is changed.
张淮清, 王亚伟, 付志红. 虚边界元法在电磁场计算中的应用[J]. 电工技术学报, 2013, 28(2): 86-90.
Zhang Huaiqing, Wang Yawei, Fu Zhihong. Virtual Boundary Element Method in Computational Electromagnetics. Transactions of China Electrotechnical Society, 2013, 28(2): 86-90.
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2013, Vol. 28 
