File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Acoustic radiation by vortex induced flexible wall vibration

TitleAcoustic radiation by vortex induced flexible wall vibration
Authors
KeywordsAcoustic wave propagation
Asymptotic stability
Boundary value problems
Eddy currents
Turbulence
Issue Date2005
PublisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.html
Citation
Journal Of The Acoustical Society Of America, 2005, v. 118 n. 4, p. 2182-2189 How to Cite?
AbstractSound radiation due to unsteady interaction between an inviscid vortex (which models a turbulent eddy) and a finite length flexible boundary in a two-dimensional space is studied using potential theory and the matched asymptotic expansion technique. The Mach number of the vortex propagation is kept below 0.15. Results suggest that the monopole field created by the volumetric flow induced by the vibrating flexible boundary dominates the overall acoustic power radiation. The longitudinal dipole directly due to the transverse vortex acceleration is only important when the vortex is moving over the flexible boundary. The longitudinal dipole resulting from the boundary vibration gains slightly in importance in the strong vortex case, but the corresponding transverse dipole remains negligible for the cases considered in the present study. The two longitudinal dipoles give rise to biased radiation directivities on both sides of the flexible boundary. © 2005 Acoustical Society of America.
Persistent Identifierhttp://hdl.handle.net/10722/44622
ISSN
2015 Impact Factor: 1.572
2015 SCImago Journal Rankings: 0.938
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTang, SKen_HK
dc.contributor.authorLeung, RCKen_HK
dc.contributor.authorSo, RMCen_HK
dc.contributor.authorLam, KMen_HK
dc.date.accessioned2007-10-30T06:06:02Z-
dc.date.available2007-10-30T06:06:02Z-
dc.date.issued2005en_HK
dc.identifier.citationJournal Of The Acoustical Society Of America, 2005, v. 118 n. 4, p. 2182-2189en_HK
dc.identifier.issn0001-4966en_HK
dc.identifier.urihttp://hdl.handle.net/10722/44622-
dc.description.abstractSound radiation due to unsteady interaction between an inviscid vortex (which models a turbulent eddy) and a finite length flexible boundary in a two-dimensional space is studied using potential theory and the matched asymptotic expansion technique. The Mach number of the vortex propagation is kept below 0.15. Results suggest that the monopole field created by the volumetric flow induced by the vibrating flexible boundary dominates the overall acoustic power radiation. The longitudinal dipole directly due to the transverse vortex acceleration is only important when the vortex is moving over the flexible boundary. The longitudinal dipole resulting from the boundary vibration gains slightly in importance in the strong vortex case, but the corresponding transverse dipole remains negligible for the cases considered in the present study. The two longitudinal dipoles give rise to biased radiation directivities on both sides of the flexible boundary. © 2005 Acoustical Society of America.en_HK
dc.languageengen_HK
dc.publisherAcoustical Society of America. The Journal's web site is located at http://asa.aip.org/jasa.htmlen_HK
dc.relation.ispartofJournal of the Acoustical Society of Americaen_HK
dc.rightsJournal of the Acoustical Society of America. Copyright © Acoustical Society of America.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsAfter publication by ASA : Copyright (year) 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. along with the following message: The following article appeared in (citation of published article) and may be found at (URL/link for published article abstract). Prior to publication by ASA, the notice should state: The following article has been submitted to/accepted by [Name of Journal]. After it is published, it will be found at (URL/link to the entry page of the journal. For JASA: http://scitation.aip.org/JASA; for JASA Express Letters: http://scitation.aip.org/JASA-EL; for Proceedings of Meetings on Acoustics: http://scitation.aip.org/POMA.-
dc.subjectAcoustic wave propagationen_HK
dc.subjectAsymptotic stabilityen_HK
dc.subjectBoundary value problems-
dc.subjectEddy currents-
dc.subjectTurbulence-
dc.titleAcoustic radiation by vortex induced flexible wall vibrationen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0001-4966&volume=118&issue=4&spage=2182&epage=2189&date=2005&atitle=Acoustic+radiation+by+vortex+induced+flexible+wall+vibrationen_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1121/1.2011127en_HK
dc.identifier.scopuseid_2-s2.0-26844534417en_HK
dc.identifier.hkuros177003-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-26844534417&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume118en_HK
dc.identifier.issue4en_HK
dc.identifier.spage2182en_HK
dc.identifier.epage2189en_HK
dc.identifier.isiWOS:000232712700012-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridTang, SK=7403436418en_HK
dc.identifier.scopusauthoridLeung, RCK=7101876138en_HK
dc.identifier.scopusauthoridSo, RMC=16489407100en_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats