Investigation on the normal derivative equation of Helmholtz integral equation in acoustics

被引：2
|
作者：
Yan, ZY
Cui, FS
Hung, KC
机构：
[1] Shama Technol S Pte Ltd, Singapore 139950, Singapore
[2] Inst High Performance Comp, Singapore 117528, Singapore
来源：
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES | 2005年 / 7卷 / 01期
关键词：
boundary element method; solid angle; hypersingular integral; Helmholtz integral equation; regularization;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Taking the normal derivative of solid angles on the surface into account, a modified Burton and Miller's formulation is derived. From which, a more reasonable expression of the hypersingular operator is obtained. To overcome the hypersingular integral, the regularization scheme developed recently is employed. Plane acoustic wave scattering from a rigid sphere is computed to show the correctness of the modified formulation with the regularization scheme. In the computation, eight-nodded isoparametric element is applied.
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页码：97 / 106
页数：10
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