Acoustic scattering from two circular apertures in a thick hard plane

초록

A problem of acoustic wave scattering from two circular apertures in a thick hard plane is solved. The Hankel transform and mode matching is used to represent the scattered held in rapidly convergent series. The reflection coefficient, transmission coefficient, and far-zone field are rigorously derived and presented in numerically efficient forms. Numerical computations are performed to illustrate scattering behaviors in terms of aperture geometry. (C) 2000 Acoustical Society of America. [S0001-4966(00)01705-7].