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Time-domain computation of muffler frequency response: Comparison of different numerical schemes

✍ Scribed by A. Broatch; J.R. Serrano; F.J. Arnau; D. Moya

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
284 KB
Volume
305
Category
Article
ISSN
0022-460X

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✦ Synopsis

A comparative study of the performance of different schemes used to solve one-dimensional gas flow equations when applied to the computation of the frequency response of exhaust mufflers is presented. Simple but representative systems with well-known acoustic behaviour were considered. Apart from the classical Lax-Wendroff and MacCormack schemes, the total variation diminishing schemes, flux corrected transport techniques or the innovative space-time conservation element and solution element method were considered. The results provide guidelines for a proper choice of the numerical scheme, taking into account the mesh spacing.

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