摘要
传输线模型方法(Transm ission Line Modeling,TLM)是近年来发展起来的描述快速电磁场现象的分支。我们将TLM方法应用于二维介质电磁场的计算,并且详细地阐述了该算法的实现过程。在数值实验中,分别使用TLM法、有限差分法计算各向同性介质中的静电场的分布,通过对结果进行对比分析,证明了TLM方法具有较高的精度,并且用TLM方法计算电磁场相当直观。同时,还用TLM法计算了在二维非均匀各向同性介质中,点电流源情况下研究区域中的电位分布,其结果较为理想。
ransmission Line Modeling(TLM) is a new branch to describle fast electromagnetic phenomena in recent ten years.This paper introduces TLM methods to compute the electromagnetic field of 2-dimension medium,and gives an algorithm of applying TLM methods to compute the electromagnetic field of 2-dimension non-uniform medium.There are some advantages to compute electromagnetic field using TLM methods,such as simple computing,high precision and so on.The numerical experiment,i.e.the comparative computing of the electrostatic field of 2-dimension non-uniform medium utilizing TLM,the finite difference method respectively,shows the effectiveness of TLM method.At the same time,this paper gives the method to compute the electric potential distribution of the non-uniform,heteropic medium in point current source.
出处
《物探化探计算技术》
CAS
CSCD
2005年第4期284-288,273,共5页
Computing Techniques For Geophysical and Geochemical Exploration
基金
国家自然科学基金(40274019)
关键词
传输线模型法
二维非均匀介质
有限差分法
电磁场
transmission line modeling
non-uniform medium
the finite difference method
electromagnetic fields
