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Article: Unsteady convective boundary layer flow of a viscous fluid at a vertical surface with variable fluid properties

TitleUnsteady convective boundary layer flow of a viscous fluid at a vertical surface with variable fluid properties
Authors
KeywordsBuoyant flow
Convective boundary layers
Finite difference scheme
Flow and heat transfer
Free convection parameters
Issue Date2013
PublisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/nonrwa
Citation
Nonlinear Analysis: Real World Applications, 2013, v. 14 n. 1, p. 455-464 How to Cite?
Abstract
In this paper we present numerical solutions to the unsteady convective boundary layer flow of a viscous fluid at a vertical stretching surface with variable transport properties and thermal radiation. Both assisting and opposing buoyant flow situations are considered. Using a similarity transformation, the governing time-dependent partial differential equations are first transformed into coupled, non-linear ordinary differential equations with variable coefficients. Numerical solutions to these equations subject to appropriate boundary conditions are obtained by a second order finite difference scheme known as the Keller-Box method. The numerical results thus obtained are analyzed for the effects of the pertinent parameters namely, the unsteady parameter, the free convection parameter, the suction/injection parameter, the Prandtl number, the thermal conductivity parameter and the thermal radiation parameter on the flow and heat transfer characteristics. It is worth mentioning that the momentum and thermal boundary layer thicknesses decrease with an increase in the unsteady parameter. © 2012 Published by Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/169239
ISSN
2013 Impact Factor: 2.338
2013 SCImago Journal Rankings: 2.285
ISI Accession Number ID

 

Author Affiliations
  1. The University of Hong Kong
  2. Bangalore University
  3. University of Central Florida
DC FieldValueLanguage
dc.contributor.authorVajravelu, Ken_US
dc.contributor.authorPrasad, KVen_US
dc.contributor.authorNg, COen_US
dc.date.accessioned2012-10-18T08:46:51Z-
dc.date.available2012-10-18T08:46:51Z-
dc.date.issued2013en_US
dc.identifier.citationNonlinear Analysis: Real World Applications, 2013, v. 14 n. 1, p. 455-464en_US
dc.identifier.issn1468-1218en_US
dc.identifier.urihttp://hdl.handle.net/10722/169239-
dc.description.abstractIn this paper we present numerical solutions to the unsteady convective boundary layer flow of a viscous fluid at a vertical stretching surface with variable transport properties and thermal radiation. Both assisting and opposing buoyant flow situations are considered. Using a similarity transformation, the governing time-dependent partial differential equations are first transformed into coupled, non-linear ordinary differential equations with variable coefficients. Numerical solutions to these equations subject to appropriate boundary conditions are obtained by a second order finite difference scheme known as the Keller-Box method. The numerical results thus obtained are analyzed for the effects of the pertinent parameters namely, the unsteady parameter, the free convection parameter, the suction/injection parameter, the Prandtl number, the thermal conductivity parameter and the thermal radiation parameter on the flow and heat transfer characteristics. It is worth mentioning that the momentum and thermal boundary layer thicknesses decrease with an increase in the unsteady parameter. © 2012 Published by Elsevier Ltd.-
dc.languageengen_US
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/nonrwaen_US
dc.relation.ispartofNonlinear Analysis: Real World Applicationsen_US
dc.subjectBuoyant flow-
dc.subjectConvective boundary layers-
dc.subjectFinite difference scheme-
dc.subjectFlow and heat transfer-
dc.subjectFree convection parameters-
dc.titleUnsteady convective boundary layer flow of a viscous fluid at a vertical surface with variable fluid propertiesen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1468-1218&volume=14&issue=1&spage=455&epage=464&date=2013&atitle=Unsteady+convective+boundary+layer+flow+of+a+viscous+fluid+at+a+vertical+surface+with+variable+fluid+propertiesen_US
dc.identifier.emailVajravelu, K: kuppalapalle.vajravelu@ucf.eduen_US
dc.identifier.emailNg, CO: cong@hku.hk-
dc.identifier.authorityNg, CO=rp00224en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.nonrwa.2012.07.008-
dc.identifier.scopuseid_2-s2.0-84866406036-
dc.identifier.hkuros212216en_US
dc.identifier.volume14en_US
dc.identifier.issue1en_US
dc.identifier.spage455en_US
dc.identifier.epage464en_US
dc.identifier.isiWOS:000309784600033-
dc.publisher.placeUnited Kingdom-
dc.identifier.citeulike11582790-

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