Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6620
DC FieldValueLanguage
dc.contributorDepartment of Building Services Engineering-
dc.creatorTang, SK-
dc.date.accessioned2014-12-11T08:26:01Z-
dc.date.available2014-12-11T08:26:01Z-
dc.identifier.issn0001-4966-
dc.identifier.urihttp://hdl.handle.net/10397/6620-
dc.language.isoenen_US
dc.publisherAcoustical Society of Americaen_US
dc.rightsCopyright 2011 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.en_US
dc.rightsThe following article appeared in Tang, S. K. (2011). Vortex sound in the presence of a low mach number flow across a drum-like silencer. Journal of the Acoustical Society of America, 129(5), 2830-2840 and may be found at http://scitation.aip.org/content/asa/journal/jasa/129/5/10.1121/1.3562567.en_US
dc.subjectAcoustic generatorsen_US
dc.subjectAmplificationen_US
dc.subjectAsymptotic analysisen_US
dc.subjectMach numberen_US
dc.subjectMechanical propertiesen_US
dc.titleVortex sound in the presence of a low Mach number flow across a drum-like silenceren_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: S. K. Tangen_US
dc.identifier.spage2830-
dc.identifier.epage2840-
dc.identifier.volume129-
dc.identifier.issue5-
dc.identifier.doi10.1121/1.3562567-
dcterms.abstractThe sound generated by a vortex propagating across a two-dimensional duct section with flexible walls (membranes) in an infinitely long rigid duct conveying a flow is investigated numerically using the matched asymptotic expansion technique and the potential theory. The effects of the initial vortex position, the mechanical properties of the flexible walls, and the mean flow on the sound generation are examined in detail. Results show that the presence of a vortex inside a uniform mean flow can strengthen or attenuate the sound generation, depending on the phase of the membrane vibration when the vortex starts vigorous interaction with the membranes and the strength of the mean flow. The results tend to imply that there is a higher chance of sound amplification when a vortex stream is moving closer to the lighter membrane under a relatively strong mean flow or when the mean flow is weak. The chances of sound amplification or attenuation are equal otherwise.-
dcterms.bibliographicCitationJournal of the Acoustical Society of America, May 2011, v. 129, no. 5, p. 2830-2840-
dcterms.isPartOfJournal of the Acoustical Society of America-
dcterms.issued2011-05-
dc.identifier.isiWOS:000290450400018-
dc.identifier.scopus2-s2.0-79959611557-
dc.identifier.pmid21568387-
dc.identifier.eissn1520-8524-
dc.identifier.rosgroupidr54228-
dc.description.ros2010-2011 > Academic research: refereed > Publication in refereed journal-
dc.description.oapublished_final-
Appears in Collections:Journal/Magazine Article
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