Acoustic diffraction by a rigid plate in a uniform flow

Anne-Sophie Bonnet-Ben Dhia; Lynda Dahi; Éric Lunéville; Vincent Pagneux

doi:10.1142/S0218202502001829

Journal articles

Acoustic diffraction by a rigid plate in a uniform flow

Anne-Sophie Bonnet-Ben Dhia ¹ Lynda Dahi Éric Lunéville ¹ Vincent Pagneux

1 POEMS - Propagation des Ondes : Étude Mathématique et Simulation

CNRS - Centre National de la Recherche Scientifique : UMR7231, UMA - Unité de Mathématiques Appliquées, Inria Saclay - Ile de France

Abstract : We present a mathematical framework for the problem of the acoustic diffraction by a plate located in a duct, in the presence of a uniform flow. The model is based on a velocity potential representation outside a vortex sheet which is induced by the trailing edge of the plate. Using limiting absorption techniques and singular functions decompositions, we show how to get a theoretical and numerical well-suited formulation.

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Journal articles

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https://hal-ensta-paris.archives-ouvertes.fr//hal-00990309
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Submitted on : Tuesday, May 13, 2014 - 2:28:46 PM
Last modification on : Thursday, September 10, 2020 - 1:28:44 PM

Acoustic diffraction by a rigid plate in a uniform flow

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Acoustic diffraction by a rigid plate in a uniform flow

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