详细信息
Helmholtz方程外Dirichlet问题的边界积分法 ( EI收录)
Boundary Integral Method for Exterior Dirichlet Problem of Helmholtz Equation
文献类型:期刊文献
中文题名:Helmholtz方程外Dirichlet问题的边界积分法
英文题名:Boundary Integral Method for Exterior Dirichlet Problem of Helmholtz Equation
作者:李霞[1];李瑞遐[1]
机构:[1]华东理工大学数学系,上海200237
年份:2005
卷号:31
期号:4
起止页码:517
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;EI(收录号:2005389375493);Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:Helmholtz方程;积分方程;Galerkin法;收敛性
外文关键词:Helmholtz equation ; integral equation ; Galerkin method; convergence
摘要:通过Helmholtz方程外Dirichlet问题产生的第一类积分方程的核具有对数奇性。将核分成两部分,一部分包含特殊的奇性,另一部分不包含奇性,然后应用Galerkin法解积分方程。文中还讨论了近似解的收敛性并给出了一个数值例子。
The kernel in the first kind integral equation arising from exterior Dirichlet problem of Helmholtz equation has a logarithmic singularity. The kernel is splitted into two parts so that the one contains a special singularity and the other doesn't contain any singularity. The Galerkin method is used to solve the integral equation. The convergence of approximate solutions is discussed and a numerical example is given.
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