Analytical study of the effect of wave number on the performance of local absorbing boundary conditions for acoustic scattering

被引：23
|
作者：
Harari, I [1 ]
Djellouli, R
机构：
[1] Tel Aviv Univ, Dept Solid Mech Mat & Syst, IL-69978 Tel Aviv, Israel
[2] Univ Colorado, Boulder, CO 80309 USA
[3] Calif State Univ Northridge, Dept Math, Northridge, CA 91330 USA
来源：
APPLIED NUMERICAL MATHEMATICS | 2004年 / 50卷 / 01期
关键词：
wave number; absorbing boundary conditions; acoustic scattering;
D O I：
10.1016/j.apnum.2003.11.007
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The computation of exterior wave problems at low wave numbers can become prohibitively expensive when higher circumferential modes are significant. An analysis of the effect of wave number on scattering problems, with local absorbing boundary conditions specified on simple shapes as on-surface radiation conditions, provides guidelines for satisfactory performance. Excessive computational cost may be avoided for most practical applications. (C) 2003 IMACS. Published by Elsevier B.V. All rights reserved.
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页码：15 / 47
页数：33
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