Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/7623
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dc.contributorDepartment of Building Services Engineering-
dc.creatorTang, SK-
dc.creatorKo, NWM-
dc.date.accessioned2015-11-10T08:33:00Z-
dc.date.available2015-11-10T08:33:00Z-
dc.identifier.issn0022-1120-
dc.identifier.issn1469-7645 (EISSN)-
dc.identifier.urihttp://hdl.handle.net/10397/7623-
dc.language.isoenen_US
dc.publisherCambridge University Pressen_US
dc.rights© 2000 Cambridge University Press. The journal web page is located at: http://journals.cambridge.org/action/displayJournal?jid=FLMen_US
dc.subjectInviscid fluiden_US
dc.subjectMathematical analysisen_US
dc.subjectSounden_US
dc.subjectVortexen_US
dc.titleSound sources in the interactions of two inviscid two-dimensional vortex pairsen_US
dc.typeJournal/Magazine Articleen_US
dc.description.otherinformationAuthor name used in this publication: S. K. Tangen_US
dc.identifier.spage177-
dc.identifier.epage201-
dc.identifier.volume419-
dc.identifier.doi10.1017/S0022112000001294-
dcterms.abstractThe sources of sound during the interactions of two identical two-dimensional inviscid vortex pairs are investigated numerically by using the vortex sound theory and the method of contour dynamics. The sound sources are identified and then separated into two independent components, which represent the contributions from the vortex centroid dynamics and the microscopic vortex core dynamics. Results show that the sound generation mechanism of the latter is independent of the type of vortex pair interaction, while that of the former depends on the jerks, accelerations and vortex forces on the vortex pairs. The power developed by the vortex forces is found to be important in the generation of sound when the vortex cores are severely deformed and their centroids are close to each other. The isolated source terms also explain the appearance of wavy oscillations on the time variations of the sound source strengths in the vortex ring and the two-dimensional vortex interaction systems.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationJournal of fluid mechanics, Sept 2000, v. 419, p. 177-201-
dcterms.isPartOfJournal of fluid mechanics-
dcterms.issued2000-09-
dc.identifier.isiWOS:000089739500007-
dc.identifier.scopus2-s2.0-0033810896-
dc.identifier.rosgroupidr03195-
dc.description.ros2000-2001 > Academic research: refereed > Publication in refereed journal-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_IR/PIRAen_US
dc.description.pubStatusPublisheden_US
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