Volume 37, September 2012Mathematical and numerical approaches for multiscale problem
|Page(s)||166 - 177|
|Published online||21 September 2012|
Numerical study of acoustic multiperforated plates
Toulouse University, INSA-Toulouse, Mathematical Institute of
Toulouse (UMR- CNRS 5219), 135
avenue de Rangueil, F-31077
and Electromagnetism and Acoustics, CERFACS, 42 Avenue Gaspard Coriolis, F-31100
2 Electromagnetism and Acoustics, CERFACS, 42 Avenue Gaspard Coriolis, F-31100 Toulouse, France
3 Toulouse University, INSA-Toulouse, Mathematical Institute of Toulouse (UMR- CNRS 5219), 135 avenue de Rangueil, F-31077 Toulouse, France
4 Projet Magique 3D, INRIA Bordeaux Sud-Ouest and LMA - UMR CNRS 5142, Université de Pau et des Pays de l’Adour, France
It is rather classical to model multiperforated plates by approximate impedance boundary conditions. In this article we would like to compare an instance of such boundary conditions obtained through a matched asymptotic expansions technique to direct numerical computations based on a boundary element formulation in the case of linear acoustic.
© EDP Sciences, SMAI 2012
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