A LAPLACE TRANSFORM BEM FOR AXISYMMETRICAL DIFFUSION UTILIZING PRETABULATED GREEN-FUNCTION

被引：22

作者：

CHENG, AHD

ABOUSLEIMAN, Y

BADMUS, T

机构：

[1] Department of Civil Engineering, University of Delaware, Newark

来源：

ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 1992年 / 9卷 / 01期

关键词：

BOUNDARY ELEMENT METHOD; DIFFUSION EQUATION; LAPLACE TRANSFORM; PRETABULATED GREEN FUNCTION; AXISYMMETRICAL MODIFIED HELMHOLTZ EQUATION;

D O I：

10.1016/0955-7997(92)90123-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents a boundary element algorithm for the solution of axisymmetric diffusion equation in the Laplace transform domain. The free-space Green's function of the governing modified Helmholtz equation is not available in closed form. The difficulty is overcome by a combination of methods, including series expansion, pre-tabulated Green's function, and direct numerical integration. The resulting algorithm is highly efficient. A few examples are provided, which demonstrate the accuracy of the proposed scheme.

引用

页码：39 / 46

页数：8

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