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26 April 2024

» arxiv » math/0603546

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Numerical Analysis of Time-Dependent Galbrun Equation in an Infinite Duct
Kamel Berriri ; A.-S. Bonnet-Ben Dhia ; P. Joly ; PostScript ; PDF ; Other formats ;
Date:	22 Mar 2006
Journal:	Waves 2005 (2005) 6
Subject:	Analysis of PDEs
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.
Source:	arXiv, math/0603546
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