DocumentCode :
2549106
Title :
Absorbing boundary conditions on arbitrary boundaries for the scalar and vector wave equations
Author :
Stupfel, B.
Author_Institution :
Centre d´Etudes de Limeil-Valenton, Villeneuve St. Georges, France
fYear :
1993
fDate :
June 28 1993-July 2 1993
Firstpage :
296
Abstract :
In order to minimize the size of the domain to be meshed and, consequently, the number of unknowns, it may be advisable to implement ABCs (absorbing boundary conditions) devised for outer boundaries of arbitrary shapes. Such ABCs are obtained for the 3-D scalar and vector wave equations. Most already published boundary conditions for the 2-D and 3-D problems are found to be particular cases of the ones presented here. The numerical implementation of these ABCs is particularly simple and, when used in conjunction with a finite element technique, they lead to symmetric matrices. The numerical results derived by using these ABCs compare favorably to those obtained by using a rigorous hybrid finite element - integral equation formulation.<>
Keywords :
boundary-value problems; electromagnetic wave scattering; finite element analysis; radar cross-sections; wave equations; RCS; absorbing boundary conditions; electromagnetic scattering; finite element; numerical implementation; scalar wave equations; symmetric matrices; vector wave equations; Boundary conditions; Coordinate measuring machines; Difference equations; Finite difference methods; Finite element methods; Integral equations; Partial differential equations; Scattering; Shape; Time domain analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
Type :
conf
DOI :
10.1109/APS.1993.385346
Filename :
385346
Link To Document :
بازگشت