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Analytical And Experimental Aeroacoustic Studies Of Open-Ended 3-Duct Perforated Elements Used In Mufflers

Gogate, GR and Munjal, ML (1995) Analytical And Experimental Aeroacoustic Studies Of Open-Ended 3-Duct Perforated Elements Used In Mufflers. In: Journal Of The Acoustical Society Of America, 97 (5). pp. 2919-2927.

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Abstract

Perforated element mufflers have been known to have good acousticp erformancew, henu sedo n automotive xhausst ystemsIn. thel astd ecadea nda half, plugm ufflersc, oncentrihc oler esonators, and three-ductc losed-endp erforatede lementsh ave been studied.T he presenti nvestigation concernso pen-endedt,h ree-ducpt erforatede lementsw, hich are knownt o combineh igh acoustic transmissiolno ss with low back pressuresT. he governinge quationsh ave been solved in the frequencyd omain,u singt he recouplinga pproacha longw ith appropriatbe oundaryc onditionst,o derivet he transferm atrixa ndt hent o calculaten oiser eductiona ndt ransmissiolno ss.T he predicted noiser eductionv aluesh aveb eens hownt o corroboratew ell with experimentallyo bservedv alues. Finally,p arametrics tudiesh aveb eend onet o draw designc urvesf or suchm ufflers.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Acoustical Society of America.
Keywords: Acoustics
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 21 Feb 2010 07:31
Last Modified: 22 Nov 2011 06:42
URI: http://eprints.iisc.ernet.in/id/eprint/19377

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