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Article: Visualization of flows in curved channels with a moderate or high rotation speed

TitleVisualization of flows in curved channels with a moderate or high rotation speed
Authors
KeywordsCoriolis vortices
Dean vortices
Rotating curved flow
Secondary instability
Visualization
Issue Date1997
PublisherHindawi Publishing Corp. The Journal's web site is located at http://www.hindawi.com/journals/ijrm/index.html
Citation
International Journal Of Rotating Machinery, 1997, v. 3 n. 3, p. 215-231 How to Cite?
AbstractFlows in channels with streamwise curvature and spanwise rotation are visualized in terms of end-view near the exit of the test sections through injecting smoke into the flows. Two test sections are used, i.e. the rectangular channels with the aspect ratio of 1 and 10, respectively. The work focuses on visualization of Dean and Coriolis vortices under the effects of secondary instabilities and flows in the region with a relatively high rotation speed. The results show that the secondary instabilities cause the Dean and Coriolis vortices oscillating in various forms and the flows at high rotation speeds are controlled by the secondary instabilities rather than the primary instability. In particular, the secondary instabilities lead the flows to be unsteady and turbulent somewhat like the bursting flow in the turbulent boundary layers. © 1997 OPA (Overseas Publishers Association) Amsterdam B.V.
Persistent Identifierhttp://hdl.handle.net/10722/53397
ISSN
2015 SCImago Journal Rankings: 0.402
References

 

DC FieldValueLanguage
dc.contributor.authorWang, Len_HK
dc.contributor.authorCheng, KCen_HK
dc.date.accessioned2009-04-03T07:18:41Z-
dc.date.available2009-04-03T07:18:41Z-
dc.date.issued1997en_HK
dc.identifier.citationInternational Journal Of Rotating Machinery, 1997, v. 3 n. 3, p. 215-231en_HK
dc.identifier.issn1023-621Xen_HK
dc.identifier.urihttp://hdl.handle.net/10722/53397-
dc.description.abstractFlows in channels with streamwise curvature and spanwise rotation are visualized in terms of end-view near the exit of the test sections through injecting smoke into the flows. Two test sections are used, i.e. the rectangular channels with the aspect ratio of 1 and 10, respectively. The work focuses on visualization of Dean and Coriolis vortices under the effects of secondary instabilities and flows in the region with a relatively high rotation speed. The results show that the secondary instabilities cause the Dean and Coriolis vortices oscillating in various forms and the flows at high rotation speeds are controlled by the secondary instabilities rather than the primary instability. In particular, the secondary instabilities lead the flows to be unsteady and turbulent somewhat like the bursting flow in the turbulent boundary layers. © 1997 OPA (Overseas Publishers Association) Amsterdam B.V.en_HK
dc.languageengen_HK
dc.publisherHindawi Publishing Corp. The Journal's web site is located at http://www.hindawi.com/journals/ijrm/index.htmlen_HK
dc.relation.ispartofInternational Journal of Rotating Machineryen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectCoriolis vorticesen_HK
dc.subjectDean vorticesen_HK
dc.subjectRotating curved flowen_HK
dc.subjectSecondary instabilityen_HK
dc.subjectVisualizationen_HK
dc.titleVisualization of flows in curved channels with a moderate or high rotation speeden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1023-621X&volume=3&issue=3&spage=215&epage=231&date=1997&atitle=Visualization+of+flows+in+curved+channels+with+a+moderate+or+high+rotation+speeden_HK
dc.identifier.emailWang, L:lqwang@hkucc.hku.hken_HK
dc.identifier.authorityWang, L=rp00184en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.scopuseid_2-s2.0-0039932265en_HK
dc.identifier.hkuros25265-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0039932265&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume3en_HK
dc.identifier.issue3en_HK
dc.identifier.spage215en_HK
dc.identifier.epage231en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridWang, L=35235288500en_HK
dc.identifier.scopusauthoridCheng, KC=7402998071en_HK

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