摘要
提出了一种修正二维瞬态散射问题中矢量势自项 (selfterm)的计算方法 .在传统方法中 ,矢量势用三维格林 (Green)函数表示 ,其中在自项计算中通常忽略同一面块上的源点和场点之间的时间延迟 ,修正方法中引入了这种时间延迟 .并进行了数值实验 .
A modified method is presented to calculate the vector potential for the two-dimensional transient scattering.In the conventional method,the vector potential is expressed in terms of three dimensional Green function,in which the time delay between the source and field points in the same patch is always neglected for the selfterm.This time delay is introduced.Numerical experiments show that this modified method can provide stable solutions to the EFIE for the transient scattering from the open structures.
出处
《计算物理》
CSCD
北大核心
2002年第3期249-252,共4页
Chinese Journal of Computational Physics
