On the boundary conditions for the vector potential formulation in electrostatics

On the boundary conditions for the vector potential formulation in electrostatics
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静电学中矢量势公式的边界条件

DOI:
10.1002/nme.4859
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发表时间:
2015
影响因子:
2.9
通讯作者:
Scmcnov
Scmcnov
中科院分区:
工程技术3区
文献类型:
--
作者:
Scmcnov

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矢势法是求解非线性机电耦合边值问题的一种很有前途的方法。然而,该公式的缺点之一是三维(电)矢势的非唯一性。本文重点介绍了解决这一问题的库仑测量方法。特别是,相应的计量边界条件和它们的一致性与物理边界条件进行了详细检查。此外,某些拓扑功能,如腔和多重连通域的分析考虑。不同的变分/弱配方是适当的有限元实现。最后,这些配方的适用性证明在几个数值例子。版权所有© 2015约翰威利父子有限公司.
The vector potential formulation is a promising solution method for nonlinear electromechanically coupled boundary value problems. However, one of the drawbacks of this formulation is the non‐uniqueness of the (electric) vector potential in three dimensions. The present paper focuses on the Coulomb gauging method to overcome this problem. In particular, the corresponding gauging boundary conditions and their consistency with the physical boundary conditions are examined in detail. Furthermore, certain topological features like cavities and multiply connectedness of the domain of analysis are taken into account. Different variational/weak formulations being appropriate for finite element implementation are described. Finally, the suitability of these formulations is demonstrated in several numerical examples. Copyright © 2015 John Wiley & Sons, Ltd.
DOI: 10.1002/cnm.818
发表时间: 2005
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