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Article: Interference effect of an upstream larger cylinder on the lock-in vibration of a flexibly mounted circular cylinder

TitleInterference effect of an upstream larger cylinder on the lock-in vibration of a flexibly mounted circular cylinder
Authors
Issue Date2003
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jfs
Citation
Journal Of Fluids And Structures, 2003, v. 17 n. 8, p. 1059-1078 How to Cite?
AbstractExperiments have been carried out to investigate the flow-induced vibration response of a flexibly mounted circular cylinder located in the vicinity of a larger cylinder and subjected to cross-flow. The interfering larger cylinder was placed upstream and had a diameter twice that of the vibrating cylinder. Complex interaction was observed between the flow over the two cylinders. The vibration responses of the flexible cylinder were classified into different regimes according to the relative positions of the two cylinders. In the-side-by-side arrangement and the tandem or near-tandem arrangement, flow-induced vibrations of the flexible cylinder were greatly suppressed. In the staggered arrangement which covered a large portion of the relative cylinder positions being investigated, vibrations of the smaller cylinder were greatly amplified. The vibration response curves were also largely modified with a broadening of the lock-in resonance range. A shift of the peak reduced velocity for maximum vibration response was also found. Flow visualizations and wake velocity measurements suggested that the modifications of the vibration responses were related to the presence or absence of constant or intermittent flow through the gap region between the two cylinders. The proposed mechanisms of flow interactions and the resulting vibration response characteristics could explain previous observations on flow-induced vibrations of two equal-sized circular cylinders reported in the literature. © 2003 Published by Elsevier Science Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/150251
ISSN
2015 Impact Factor: 1.709
2015 SCImago Journal Rankings: 1.282
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLam, KMen_US
dc.contributor.authorTo, APen_US
dc.date.accessioned2012-06-26T06:02:46Z-
dc.date.available2012-06-26T06:02:46Z-
dc.date.issued2003en_US
dc.identifier.citationJournal Of Fluids And Structures, 2003, v. 17 n. 8, p. 1059-1078en_US
dc.identifier.issn0889-9746en_US
dc.identifier.urihttp://hdl.handle.net/10722/150251-
dc.description.abstractExperiments have been carried out to investigate the flow-induced vibration response of a flexibly mounted circular cylinder located in the vicinity of a larger cylinder and subjected to cross-flow. The interfering larger cylinder was placed upstream and had a diameter twice that of the vibrating cylinder. Complex interaction was observed between the flow over the two cylinders. The vibration responses of the flexible cylinder were classified into different regimes according to the relative positions of the two cylinders. In the-side-by-side arrangement and the tandem or near-tandem arrangement, flow-induced vibrations of the flexible cylinder were greatly suppressed. In the staggered arrangement which covered a large portion of the relative cylinder positions being investigated, vibrations of the smaller cylinder were greatly amplified. The vibration response curves were also largely modified with a broadening of the lock-in resonance range. A shift of the peak reduced velocity for maximum vibration response was also found. Flow visualizations and wake velocity measurements suggested that the modifications of the vibration responses were related to the presence or absence of constant or intermittent flow through the gap region between the two cylinders. The proposed mechanisms of flow interactions and the resulting vibration response characteristics could explain previous observations on flow-induced vibrations of two equal-sized circular cylinders reported in the literature. © 2003 Published by Elsevier Science Ltd.en_US
dc.languageengen_US
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/jfsen_US
dc.relation.ispartofJournal of Fluids and Structuresen_US
dc.titleInterference effect of an upstream larger cylinder on the lock-in vibration of a flexibly mounted circular cylinderen_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.doi10.1016/S0889-9746(03)00065-3en_US
dc.identifier.scopuseid_2-s2.0-0141994396en_US
dc.identifier.hkuros92989-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0141994396&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue8en_US
dc.identifier.spage1059en_US
dc.identifier.epage1078en_US
dc.identifier.isiWOS:000185411000002-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLam, KM=7403656958en_US
dc.identifier.scopusauthoridTo, AP=7004145318en_US

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