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Modeling of Engine Exhaust Acoustics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published May 17, 1999 by SAE International in United States
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Exhaust acoustics simulation is an important part of the exhaust system process. Especially important is the trend towards a coupled approach to performance and acoustics design. The present paper describes a new simulation tool developed for such coupled simulations. This tool is based on a one-dimensional fluid dynamics solution of the flow in the engine manifolds and exhaust and intake elements. To represent the often complex geometries of mufflers, an easy-to-use graphical pre-processor is provided, with which the user builds a model representation of mufflers using a library of basic elements. A comparison made to two engines equipped with exhaust silencers, shows that the predictions give good results.
CitationMorel, T., Silvestri, J., Goerg, K., and Jebasinski, R., "Modeling of Engine Exhaust Acoustics," SAE Technical Paper 1999-01-1665, 1999, https://doi.org/10.4271/1999-01-1665.
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