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Article: A vertical round jet issuing into an unsteady crossflow consisting of a mean current and a sinusoidal fluctuating component

TitleA vertical round jet issuing into an unsteady crossflow consisting of a mean current and a sinusoidal fluctuating component
Authors
KeywordsJet in crossflow
Oscillating motion
Unsteady flow
Issue Date1997
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweia
Citation
Journal Of Wind Engineering And Industrial Aerodynamics, 1997, v. 67-68, p. 843-857 How to Cite?
AbstractWe applied a CFD code to investigate the dispersion of a round jet issuing into an unsteady ambient crossflowing stream which consists of coherent sinusoidal fluctuations imposed upon an otherwise steady mean flow. The computed flow patterns were compared with our laboratory observations where we employed an alternative approach to simulate the fluctuating crossflow. Both sets of results showed that coherent oscillations in the ambient crossflow organized the jet fluids into successive large-scale clouds or patches and that the formation of the patches was regular. As a result, the mean dispersion of the jet was enhanced. However, the coherent fluid patches could lead to very high instantaneous concentration levels. The CFD results also served to support the validity of our experimental technique.
Persistent Identifierhttp://hdl.handle.net/10722/71395
ISSN
2015 Impact Factor: 2.024
2015 SCImago Journal Rankings: 1.097
References

 

DC FieldValueLanguage
dc.contributor.authorXia, LPen_HK
dc.contributor.authorLam, KMen_HK
dc.date.accessioned2010-09-06T06:31:36Z-
dc.date.available2010-09-06T06:31:36Z-
dc.date.issued1997en_HK
dc.identifier.citationJournal Of Wind Engineering And Industrial Aerodynamics, 1997, v. 67-68, p. 843-857en_HK
dc.identifier.issn0167-6105en_HK
dc.identifier.urihttp://hdl.handle.net/10722/71395-
dc.description.abstractWe applied a CFD code to investigate the dispersion of a round jet issuing into an unsteady ambient crossflowing stream which consists of coherent sinusoidal fluctuations imposed upon an otherwise steady mean flow. The computed flow patterns were compared with our laboratory observations where we employed an alternative approach to simulate the fluctuating crossflow. Both sets of results showed that coherent oscillations in the ambient crossflow organized the jet fluids into successive large-scale clouds or patches and that the formation of the patches was regular. As a result, the mean dispersion of the jet was enhanced. However, the coherent fluid patches could lead to very high instantaneous concentration levels. The CFD results also served to support the validity of our experimental technique.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jweiaen_HK
dc.relation.ispartofJournal of Wind Engineering and Industrial Aerodynamicsen_HK
dc.rightsJournal of Wind Engineering & Industrial Aerodynamics. Copyright © Elsevier BV.en_HK
dc.subjectJet in crossflowen_HK
dc.subjectOscillating motionen_HK
dc.subjectUnsteady flowen_HK
dc.titleA vertical round jet issuing into an unsteady crossflow consisting of a mean current and a sinusoidal fluctuating componenten_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0167-6105&volume=67/68&spage=843 &epage= 857&date=1997&atitle=A+vertical+round+jet+issuing+into+an+unsteady+crossflow+consisting+of+a+mean+current+and+a+sinusoidal+fluctuating+componenten_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0167-6105(97)00123-2-
dc.identifier.scopuseid_2-s2.0-0031109534en_HK
dc.identifier.hkuros39347en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0031109534&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume67-68en_HK
dc.identifier.spage843en_HK
dc.identifier.epage857en_HK
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridXia, LP=7201955947en_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK

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