Acoustic scattering from two parallel soft cylinders

Author

Scharstein, Robert W.

Author_Institution

Dept. of Electr. Eng., Alabama Univ., Tuscaloosa, AL, USA

fYear

1992

fDate

12-15 Apr 1992

Firstpage

534

Abstract

The scattered field due to two parallel circular cylinders illuminated by a plane wave is formulated in terms of outgoing cylindrical waves emanating from each cylinder. Dirichlet boundary conditions are enforced on each cylindrical surface. Graf´s addition theorem for cylindrical harmonics makes possible the closed-form evaluation of the coefficients in two infinite, coupled sets of linear equations for the unknown modal coefficients. Resultant far scattered fields in the frequency domain are graphed for several geometries and plane wave incidence angles. The effects of coupling between cylinders are studied via a comparison between far-field scatter computed by this accurate method and a noninteracting sum of the isolated cylinder responses

Keywords

acoustic wave scattering; electromagnetic wave scattering; Dirichlet boundary conditions; Graf´s addition theorem; acoustic scattering; closed-form evaluation; coupling effects; cylindrical harmonics; electromagnetic scattering; far scattered fields; frequency domain; isolated cylinder responses; linear equations; outgoing cylindrical waves; parallel soft cylinders; plane wave incidence angles; unknown modal coefficients; Acoustic scattering; Acoustic waves; Boundary conditions; Boundary value problems; Contracts; Electromagnetic scattering; Engine cylinders; Equations; Geometry; Wave functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '92, Proceedings., IEEE

Conference_Location

Birmingham, AL

Print_ISBN

0-7803-0494-2

Type

conf

DOI

10.1109/SECON.1992.202409

Filename

202409