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Article: Round jet in ambient counterflowing stream

TitleRound jet in ambient counterflowing stream
Authors
Issue Date1997
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/hy.html
Citation
Journal Of Hydraulic Engineering, 1997, v. 123 n. 10, p. 895-903 How to Cite?
AbstractWe investigate the penetration and spreading of a round jet into an ambient counterflow using the planar laser-induced fluorescence (LIF) technique. The LIF images enable us to obtain the instantaneous concentration field of the penetrating jet effluent. Large-scale wandering of jet penetration is observed and leads to significant temporal and spatial fluctuations in the location of the dividing interface between jet effluent and ambient fluid. The penetration distance and the lateral spreading width of the jet exhibit fluctuations with covering ranges as large as their corresponding time-averaged values. The degree of fluctuations in these penetration and spreading parameters increases with the jet-to-current velocity ratio, but essentially scales with the mean penetration distance. We also attempt to predict the mean penetration distance by considering the decay of centerline jet velocity under a hypothesis that the counterflow affects the jet via a simple compression of the axial coordinates of jet flow.
Persistent Identifierhttp://hdl.handle.net/10722/71757
ISSN
2015 Impact Factor: 1.284
2015 SCImago Journal Rankings: 0.908
References

 

DC FieldValueLanguage
dc.contributor.authorLam, KMen_HK
dc.contributor.authorChan, HCen_HK
dc.date.accessioned2010-09-06T06:34:53Z-
dc.date.available2010-09-06T06:34:53Z-
dc.date.issued1997en_HK
dc.identifier.citationJournal Of Hydraulic Engineering, 1997, v. 123 n. 10, p. 895-903en_HK
dc.identifier.issn0733-9429en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71757-
dc.description.abstractWe investigate the penetration and spreading of a round jet into an ambient counterflow using the planar laser-induced fluorescence (LIF) technique. The LIF images enable us to obtain the instantaneous concentration field of the penetrating jet effluent. Large-scale wandering of jet penetration is observed and leads to significant temporal and spatial fluctuations in the location of the dividing interface between jet effluent and ambient fluid. The penetration distance and the lateral spreading width of the jet exhibit fluctuations with covering ranges as large as their corresponding time-averaged values. The degree of fluctuations in these penetration and spreading parameters increases with the jet-to-current velocity ratio, but essentially scales with the mean penetration distance. We also attempt to predict the mean penetration distance by considering the decay of centerline jet velocity under a hypothesis that the counterflow affects the jet via a simple compression of the axial coordinates of jet flow.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/hy.htmlen_HK
dc.relation.ispartofJournal of Hydraulic Engineeringen_HK
dc.rightsJournal of Hydraulic Engineering. Copyright © American Society of Civil Engineers.en_HK
dc.titleRound jet in ambient counterflowing streamen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0733-9429&volume=123 &issue=10&spage=895 &epage= 903&date=1997&atitle=Round+jet+in+ambient+counterflowing+streamen_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0031257647en_HK
dc.identifier.hkuros39346en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031257647&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume123en_HK
dc.identifier.issue10en_HK
dc.identifier.spage895en_HK
dc.identifier.epage903en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK
dc.identifier.scopusauthoridChan, HC=7403402425en_HK

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