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NUMERICAL ANALYSIS OF TIME-DEPENDENT GALBRUN EQUATION IN AN INFINITE DUCT

Kamel Berriri 1 Anne-Sophie Bonnet-Ben Dhia 1 Patrick Joly 1
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 : In this paper we are interested in the mathematical and numerical analysis of the time-dependent Galbrun equa- tion in a rigid duct. This equation models the acoustic propagation in presence of flow [1]. We propose a regu- larized variational formulation of the problem, in the sub- sonic case, suitable for an approximation by Lagrange finite elements, and corresponding absorbing boundary conditions.
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https://hal.archives-ouvertes.fr/hal-00021587
Contributor : Kamel Berriri <>
Submitted on : Wednesday, March 22, 2006 - 5:36:14 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:03 AM
Long-term archiving on: : Saturday, April 3, 2010 - 10:01:42 PM

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Kamel Berriri, Anne-Sophie Bonnet-Ben Dhia, Patrick Joly. NUMERICAL ANALYSIS OF TIME-DEPENDENT GALBRUN EQUATION IN AN INFINITE DUCT. WAVES 2005, 2005, France. pp.6. ⟨hal-00021587⟩

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