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Precise description of the different far fields encountered in the problem of diffraction of acoustic waves by a quarter-plane
Authors
,
RC Assier
N Peake
Publication date
1 October 2012
Publisher
Abstract
This paper provides a review of important results concerning the Geometrical Theory of Diffraction and Geometrical Optics. It also reviews the properties of the existing solution for the problem of diffraction of a time harmonic plane wave by a half-plane. New mathematical expressions are derived for the wave fields involved in the problem of diffraction of a time harmonic plane wave by a quarter-plane, including the secondary radiated waves. This leads to a precise representation of the diffraction coefficient describing the diffraction occurring at the corner of the quarter-plane. Our results for the secondary radiated waves are an important step towards finding a formula giving the corner diffraction coefficient everywhere. © 2012 The authors
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CUED - Cambridge University Engineering Department
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Last time updated on 15/07/2020