Analytic evaluation of the accuracy of several conformable local absorbing boundary conditions

Author

Meade, D.B. ; Slade, G.W. ; Peterson, A.F. ; Webb, K.J.

Author_Institution

Dept. of Math., South Carolina Univ., Columbia, SC, USA

fYear

1992

fDate

18-25 June 1992

Firstpage

540

Abstract

A. Bayliss et al. (1982) (BT) have proposed an arbitrary order approximation based upon the Wilcox (1956) spherical wave function far-field expansion, for the case of a circular or spherical boundary with the source located at the center. In the present work, the BT-type representation is generalized to the case of an arbitrary convex boundary, with the curvature explicitly incorporated. Several possible implementations are compared.<>

Keywords

boundary-value problems; electromagnetic field theory; electromagnetic wave absorption; Bayliss; Wilcox; circular boundary; conformable local absorbing boundary conditions; convex boundary; curvature; far-field expansion; order approximation; spherical boundary; spherical wave function; Boundary conditions; Electromagnetic scattering; Electromagnetic waveguides; Finite difference methods; Finite element methods; Frequency domain analysis; Integral equations; Mathematics; Partial differential equations; Wave functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221881

Filename

221881