Numerical dispersion of a vector finite element method on skewed hexahedral grids

被引：0
|
作者：
White, DA [1 ]
机构：
[1] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA
来源：
COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 2000年 / 16卷 / 01期
关键词：
finite element; dispersion; electromagnetics; Maxwell's equations;
D O I：
10.1002/(SICI)1099-0887(200001)16:1<47::AID-CNM314>3.0.CO;2-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The numerical dispersion relation is an important measure of the discretization error inherent in grid-based numerical methods for solving Maxwell's equations. In this paper we calculate the numerical dispersion of a vector finite element method for the case of a distorted three-dimensional hexahedral grid. The main result is that the numerical dispersion relation remains second-order accurate as the grid is distorted, although the dispersion becomes quite anisotropic. Published in 2000 by John Wiley & Sons, Ltd.
引用
收藏
页码：47 / 55
页数：9
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