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Article: Interaction of flows behind two circular cylinders of different diameters in side-by-side arrangement

TitleInteraction of flows behind two circular cylinders of different diameters in side-by-side arrangement
Authors
KeywordsVortex Flows
Wakes
Issue Date1993
PublisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/etfs
Citation
Experimental Thermal And Fluid Science, 1993, v. 7 n. 3, p. 189-201 How to Cite?
AbstractExperiments were performed to study the fluid dynamics of flow past two cylinders of diameter ratio 1:2 in a side-by-side arrangement with a gap spacing of T/D = 1.5. Based on hot-wire measurements and flow visualization results, the most frequent mode of large-scale flow structures in the wake consists of two vortex streets developed from the two cylinders. Behind the big cylinder the "first" (outer) and "second" (inner) streets are isolated. The former has a higher convection velocity, which is the same as that of the small cylinder's vortices, while the latter convects with a lower velocity. The big and small vortex streets interact in two stages, resulting in lateral transport of fluid across the entire widths of the two wake regions. A locked repetitive pattern of four big vortices with 10 small vortices is observed. A third spectral component behind the gap portion of the small cylinder's wake region is the consequence of the first-stage interaction. The less frequent mode does not suggest interaction of the big and small vortices. © 1993.
Persistent Identifierhttp://hdl.handle.net/10722/150014
ISSN
2015 Impact Factor: 2.128
2015 SCImago Journal Rankings: 1.389

 

DC FieldValueLanguage
dc.contributor.authorLam, KMen_US
dc.contributor.authorWong, PTYen_US
dc.contributor.authorKo, NWMen_US
dc.date.accessioned2012-06-26T06:01:05Z-
dc.date.available2012-06-26T06:01:05Z-
dc.date.issued1993en_US
dc.identifier.citationExperimental Thermal And Fluid Science, 1993, v. 7 n. 3, p. 189-201en_US
dc.identifier.issn0894-1777en_US
dc.identifier.urihttp://hdl.handle.net/10722/150014-
dc.description.abstractExperiments were performed to study the fluid dynamics of flow past two cylinders of diameter ratio 1:2 in a side-by-side arrangement with a gap spacing of T/D = 1.5. Based on hot-wire measurements and flow visualization results, the most frequent mode of large-scale flow structures in the wake consists of two vortex streets developed from the two cylinders. Behind the big cylinder the "first" (outer) and "second" (inner) streets are isolated. The former has a higher convection velocity, which is the same as that of the small cylinder's vortices, while the latter convects with a lower velocity. The big and small vortex streets interact in two stages, resulting in lateral transport of fluid across the entire widths of the two wake regions. A locked repetitive pattern of four big vortices with 10 small vortices is observed. A third spectral component behind the gap portion of the small cylinder's wake region is the consequence of the first-stage interaction. The less frequent mode does not suggest interaction of the big and small vortices. © 1993.en_US
dc.languageengen_US
dc.publisherElsevier Inc. The Journal's web site is located at http://www.elsevier.com/locate/etfsen_US
dc.relation.ispartofExperimental Thermal and Fluid Scienceen_US
dc.subjectVortex Flowsen_US
dc.subjectWakesen_US
dc.titleInteraction of flows behind two circular cylinders of different diameters in side-by-side arrangementen_US
dc.typeArticleen_US
dc.identifier.emailLam, KM:kmlam@hku.hken_US
dc.identifier.authorityLam, KM=rp00134en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0027676071en_US
dc.identifier.hkuros230578-
dc.identifier.volume7en_US
dc.identifier.issue3en_US
dc.identifier.spage189en_US
dc.identifier.epage201en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridLam, KM=7403656958en_US
dc.identifier.scopusauthoridWong, PTY=7403979804en_US
dc.identifier.scopusauthoridKo, NWM=24522564300en_US

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