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Article: Convective diffusion in steady flow through a tube with a retentive and absorptive wall

TitleConvective diffusion in steady flow through a tube with a retentive and absorptive wall
Authors
Issue Date2008
PublisherAmerican Institute of Physics. The Journal's web site is located at http://ojps.aip.org/phf
Citation
Physics Of Fluids, 2008, v. 20 n. 7 How to Cite?
AbstractThis is a study on the mass transport, accomplished by reaction, advection, and dispersion, of a solute in steady Poiseuille flow through a circular tube with a reactive wall layer. The reaction consists of a reversible component due to phase exchange between the flowing fluid and the wall layer and an irreversible component due to absorption into the wall. First, the generalized dispersion model is employed to deduce asymptotic steady-state values of the first three transport coefficients in terms of the strengths and kinetics of the two reactions, which can be of any magnitude. Second, a numerical simulation is performed to examine the time development of the fluid- and wall-phase concentration profiles starting from the initial release of the solute into the tube. The analytical deduction brings out not only results relevant to the asymptotic state when the transport coefficients become independent of time but also criteria that can be used to estimate the significance of the asymptotic steady state in the whole course of mass transport. The numerical simulation generates time-developing concentration profiles that can be used to explain some paradoxical behaviors exhibited by the transport coefficients under certain conditions. © 2008 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/59019
ISSN
2015 Impact Factor: 2.017
2015 SCImago Journal Rankings: 1.036
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNg, COen_HK
dc.contributor.authorRudraiah, Nen_HK
dc.date.accessioned2010-05-31T03:41:31Z-
dc.date.available2010-05-31T03:41:31Z-
dc.date.issued2008en_HK
dc.identifier.citationPhysics Of Fluids, 2008, v. 20 n. 7en_HK
dc.identifier.issn1070-6631en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59019-
dc.description.abstractThis is a study on the mass transport, accomplished by reaction, advection, and dispersion, of a solute in steady Poiseuille flow through a circular tube with a reactive wall layer. The reaction consists of a reversible component due to phase exchange between the flowing fluid and the wall layer and an irreversible component due to absorption into the wall. First, the generalized dispersion model is employed to deduce asymptotic steady-state values of the first three transport coefficients in terms of the strengths and kinetics of the two reactions, which can be of any magnitude. Second, a numerical simulation is performed to examine the time development of the fluid- and wall-phase concentration profiles starting from the initial release of the solute into the tube. The analytical deduction brings out not only results relevant to the asymptotic state when the transport coefficients become independent of time but also criteria that can be used to estimate the significance of the asymptotic steady state in the whole course of mass transport. The numerical simulation generates time-developing concentration profiles that can be used to explain some paradoxical behaviors exhibited by the transport coefficients under certain conditions. © 2008 American Institute of Physics.en_HK
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.rightsPhysics of Fluids. Copyright © American Institute of Physics.en_HK
dc.titleConvective diffusion in steady flow through a tube with a retentive and absorptive wallen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1070-6631&volume=20&issue=7&spage=073604&epage=&date=2008&atitle=Convective+diffusion+in+steady+flow+through+a+tube+with+a+retentive+and+absorptive+wallen_HK
dc.identifier.emailNg, CO:cong@hku.hken_HK
dc.identifier.authorityNg, CO=rp00224en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1063/1.2958322en_HK
dc.identifier.scopuseid_2-s2.0-48849091259en_HK
dc.identifier.hkuros147179en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-48849091259&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume20en_HK
dc.identifier.issue7en_HK
dc.identifier.isiWOS:000258175600018-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridNg, CO=7401705594en_HK
dc.identifier.scopusauthoridRudraiah, N=7005972595en_HK

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