计算物理 ›› 2002, Vol. 19 ›› Issue (4): 329-332.

• 论文 • 上一篇    下一篇

曲边六面体矢量单元的改进与应用

刘鹏, 许家栋   

  1. 西北工业大学电子工程系, 陕西 西安 710072
  • 收稿日期:2000-12-13 修回日期:2001-04-23 出版日期:2002-07-25 发布日期:2002-07-25
  • 作者简介:刘鹏(1971-),男,陕西泾阳,博士,从事电磁场数值算法方面的研究.

IMPROVEMENT AND APPLICATION OF CURVILINEAR HEXAHEDRAL EDGE ELEMENTS

LIU Peng, XU Jia-dong   

  1. Department of Electronic Engineering, Northwestern Polytechnical University, Xi'an 710072, China
  • Received:2000-12-13 Revised:2001-04-23 Online:2002-07-25 Published:2002-07-25

摘要: 改进了曲边六面体矢量单元的矢量基函数.简要回顾了原六面体矢量单元的定义之后,介绍了新的矢量基函数的构造方法,矢量基函数间的正交性因此有所改善,并有利于处理有限元Dirichlet边界条件.结合完全匹配层,将新单元应用于三维电磁散射问题,并进行了数值计算.

关键词: 矢量单元, 有限元法, 电磁散射, 完全匹配层

Abstract: An improvement of the vector basis functions of quadratic hexahedral edge elements is presented.After a brief review of the original hexahedral edge elements[4],the procedure for the construction of the new edge basis functions is proposed.A better orthogonality is gained for the new basis functions,which facilitates the enforcement of Dirichlet boundary condition in the Finite Element Method (FEM).The new hexahedral edge elements is used to solve 3D scattering problem with Perfectly Matched Layer (PML).The related numerical results are carried out to testify both effectiveness and accuracy.

Key words: edge elements, finite element method, electromagnetic scattering, PML

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