Radiation of sound from the perforated end of a semi-infinite rigid pipe

Abstract

Radiation of dominant plane sound wave from a semi-infinite rigid circular cylindrical pipe with a perforated end is investigated rigorously by the Wiener-Hopf technique. The solution involves a set of infinitely many expansion coefficients satisfying an infinite system of linear algebraic equations. The numerical solution of this system is obtained for different parameters of the problem such as the pipe radius, specific impedance of the perforated screen and their effects on the diffraction phenomenon are shown graphically. © 2008 Elsevier B.V., All rights reserved.