A general method of acoustic waves scattering in inhomogeneous material

Author

Bao-ping Hei ; Zai-lin Yang ; Yao Wang

Author_Institution

Coll. of Aerosp. & Civil Eng., Harbin Eng. Univ., Harbin, China

fYear

2013

fDate

25-27 Oct. 2013

Firstpage

1

Lastpage

4

Abstract

Based on the complex variable function method, a new analytical approach for solving acoustic scattering in an inhomogeneous material with variable refraction-index profiles is investigated. Reduced Helmholtz equation with variable coefficient is evaluated by algebraic transformation. The potential expression with a infinite superposition algebraic function is derived by conformal mapping. Two cases for different inhomogeneous parameters are discussed. A special mapping form corresponding an inhomogeneous material is treated to examine the validity of the present method in acoustic field.

Keywords

Helmholtz equations; acoustic wave scattering; inhomogeneous media; Helmholtz equation; acoustic field; acoustic wave scattering; algebraic transformation; infinite superposition algebraic function; inhomogeneous material; inhomogeneous parameters; refraction-index profiles; Acoustic scattering; Complex variable function method; Helmholtz equation; Inhomogeneous material; Variable refraction-index profile;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2013 Symposium on

Conference_Location

Changsha

Print_ISBN

978-1-4799-3289-4

Type

conf

DOI

10.1109/SPAWDA.2013.6841153

Filename

6841153