Abstract : In this paper we study a low frequency model for acoustic propagation in a 2D flow duct. For some Mach profile flow, we are able to give a well-posedness theorem. Its proof relies on a quasi-explicit expression of the solution which provides us an efficient numerical method. We give and comment numerical results for particular linear, tangent and quadratic profiles. Finally, we give a numerical validation of our asymptotic model.
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Journal articles
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https://hal-ensta-paris.archives-ouvertes.fr//hal-00969515
Contributor : Aurélien Arnoux
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Submitted on : Wednesday, April 2, 2014 - 2:31:20 PM
Last modification on : Wednesday, July 3, 2019 - 10:48:03 AM
Lauris Joubert, Patrick Joly. A low frequency model for acoustic propagation in a 2D flow duct: numerical computation. Communications in Computational Physics, Global Science Press, 2012, 11 (2), pp.508-524. ⟨hal-00969515⟩
