| 混合法计算三维非均匀介质中的电磁场 |
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| 引用本文： | 王勇,曹俊兴.混合法计算三维非均匀介质中的电磁场[J].物探化探计算技术,2007,29(2):99-103. |
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| 作者姓名： | 王勇 曹俊兴 |
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| 作者单位： | 1. 宜宾学院物理与电子信息系,四川,宜宾,644000
2. 成都理工大学,成都,610059 |
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| 摘 要： | 介绍了联合运用积分方程法与有限元法(简称混合法)来计算三维非均匀介质中电磁场分布的理论方法,并进行了数值模拟实验。混合法的原理是引入一个包围非均匀目标体的虚构边界,在边界内部的场用有限元法模拟,在边界外部(包括边界)的场用积分方程表达,二者在边界上通过场的连续性耦合起来。数值实验结果表明,混合法既能显著地减小网格规模,又能灵活地模拟复杂的介质情况,且计算精度较高。
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| 关 键 词： | 积分方程法 有限元法 混合法 电磁场 |
| 文章编号： | 1001-1749（2007）02-0099-05 |
| 修稿时间： | 2006-06-21 |
Electromagnetic modeling by hybrid method |
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| WANG Yong,CAO Jun-xing.Electromagnetic modeling by hybrid method[J].Computing Techniques For Geophysical and Geochemical Exploration,2007,29(2):99-103. |
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| Authors: | WANG Yong CAO Jun-xing |
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| Abstract: | This paper introduces a hybrid algorithm to model electromagnetic field in inhomogeneous medium by combining integral equation method and finite element method (FEM).In the hybrid algorithm,we use FEM to model the EM field in the interior domain,and then use the integral equation to compute the field on the boundary(to provide an artificial boundary condition for FEM system),and the finite element approximation is also convenient for deriving discrete equations of the integral equation.At last,we develop the 3D programs for the hybrid algorithm,and test them using numerical experiments. |
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| Keywords: | integral equation method finite element method the hybrid algorithm electromagnetic field |
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