Aeroacoustics Investigation of an Automotive Exhaust Muffler

Fabrício Torres Borghi; José Eduardo Mautone Barros; Ramon Molina Valle

doi:10.4028/www.scientific.net/AMR.1016.529

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1016Aeroacoustics Investigation of an Automotive...

Aeroacoustics Investigation of an Automotive Exhaust Muffler

Abstract:

Traffic is a major source of environmental noise in modern society. Subsequently, the development of new vehicles is subjected to heavy governmental legislations. The major noise source on common road vehicles during acceleration is the flow noise caused by turbulent exhaust gas. The main goal of this work is to develop an appropriate Aeroacoustic simulation method to investigate the acoustic of sound on exhaust automotive muffler. The range of validity of the method is studied comparing results to experimental data. The Computational Aeroacoustics (CAA) results are compared with an experimental test in a vehicle during its acceleration and the mean flow model of the muffler has a satisfactory mesh with a suitable inlet boundary provided by an engine dynamometer data. The present work describes a good agreement between computational and experimental approach for the Aeroacoustics behavior of a specific configuration of exhaust muffler.

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Periodical:

Advanced Materials Research (Volume 1016)

Pages:

529-533

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1016.529

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Online since:

August 2014

Authors:

Fabrício Torres Borghi*, José Eduardo Mautone Barros, Ramon Molina Valle

Keywords:

Aeroacoustics, Automotive, Computational, Exhaust System, Experimental, Mufflers, Vehicle

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