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Article: Centerline velocity decay of a circular jet in a counterflowing stream

TitleCenterline velocity decay of a circular jet in a counterflowing stream
Authors
KeywordsPhysics
Issue Date1998
PublisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phf
Citation
Physics Of Fluids, 1998, v. 10 n. 3, p. 637-644 How to Cite?
AbstractWe use an advection hypothesis to analyze the decay of centerline velocity of a circular jet issuing into a counterflowing stream. Working in the Lagrangian frame, we follow the locations and velocity gradients of jet fluid particles along the jet central axis while the particles are being advected backwards by the counterflow. The spatial velocity gradient along the jet centerline is thus obtained and subsequently integrated to describe the spatial decay of axial velocities. Laser-doppler velocity measurements are performed in the laboratory and the data are well predicted by our analytical expression of centerline velocity decay. Looking from another view, our treatment supports that the effect of an external axial flow stream on the jet flow field can be represented by a certain degree of stretching or contracting of the jet in the axial direction. © 1998 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/42644
ISSN
2015 Impact Factor: 2.017
2015 SCImago Journal Rankings: 1.036
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChan, CHCen_HK
dc.contributor.authorLam, KMen_HK
dc.date.accessioned2007-03-23T04:28:42Z-
dc.date.available2007-03-23T04:28:42Z-
dc.date.issued1998en_HK
dc.identifier.citationPhysics Of Fluids, 1998, v. 10 n. 3, p. 637-644en_HK
dc.identifier.issn1070-6631en_HK
dc.identifier.urihttp://hdl.handle.net/10722/42644-
dc.description.abstractWe use an advection hypothesis to analyze the decay of centerline velocity of a circular jet issuing into a counterflowing stream. Working in the Lagrangian frame, we follow the locations and velocity gradients of jet fluid particles along the jet central axis while the particles are being advected backwards by the counterflow. The spatial velocity gradient along the jet centerline is thus obtained and subsequently integrated to describe the spatial decay of axial velocities. Laser-doppler velocity measurements are performed in the laboratory and the data are well predicted by our analytical expression of centerline velocity decay. Looking from another view, our treatment supports that the effect of an external axial flow stream on the jet flow field can be represented by a certain degree of stretching or contracting of the jet in the axial direction. © 1998 American Institute of Physics.en_HK
dc.format.extent192408 bytes-
dc.format.extent25600 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phfen_HK
dc.relation.ispartofPhysics of Fluidsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectPhysicsen_HK
dc.titleCenterline velocity decay of a circular jet in a counterflowing streamen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1070-6631&volume=10&issue=3&spage=637&epage=644&date=1998&atitle=Centerline+velocity+decay+of+a+circular+jet+in+a+counterflowing+streamen_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1063/1.869589en_HK
dc.identifier.scopuseid_2-s2.0-0001545677en_HK
dc.identifier.hkuros39348-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0001545677&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume10en_HK
dc.identifier.issue3en_HK
dc.identifier.spage637en_HK
dc.identifier.epage644en_HK
dc.identifier.isiWOS:000072311400011-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridChan, CHC=55031165800en_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK

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