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

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TitleUnsteady convective boundary layer flow of a viscous fluid at a vertical surface with variable fluid properties
AuthorsVajravelu, K3
Prasad, KV2
Ng, CO1
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
CitationNonlinear Analysis: Real World Applications, 2013, v. 14 n. 1, p. 455-464 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.nonrwa.2012.07.008
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.
ISSN1468-1218
2011 Impact Factor: 2.043
2011 SCImago Journal Rankings: 0.085
DOIhttp://dx.doi.org/10.1016/j.nonrwa.2012.07.008
DC Field
Value
dc.contributor.authorVajravelu, K
dc.contributor.authorPrasad, KV
dc.contributor.authorNg, CO
dc.date.accessioned2012-10-18T08:46:51Z
dc.date.available2012-10-18T08:46:51Z
dc.date.issued2013
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.description.natureLink_to_subscribed_fulltext
dc.identifier.citationNonlinear Analysis: Real World Applications, 2013, v. 14 n. 1, p. 455-464 [How to Cite?]
DOI: http://dx.doi.org/10.1016/j.nonrwa.2012.07.008
dc.identifier.citeulike11582790
dc.identifier.doihttp://dx.doi.org/10.1016/j.nonrwa.2012.07.008
dc.identifier.epage464
dc.identifier.hkuros212216
dc.identifier.issn1468-1218
2011 Impact Factor: 2.043
2011 SCImago Journal Rankings: 0.085
dc.identifier.issue1
dc.identifier.openurl
dc.identifier.scopuseid_2-s2.0-84866406036
dc.identifier.spage455
dc.identifier.urihttp://hdl.handle.net/10722/169239
dc.identifier.volume14
dc.languageeng
dc.publisherElsevier Ltd. The Journal's web site is located at http://www.elsevier.com/locate/nonrwa
dc.publisher.placeUnited Kingdom
dc.relation.ispartofNonlinear Analysis: Real World Applications
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 properties
dc.typeArticle
Author Affiliations
  1. The University of Hong Kong
  2. Bangalore University
  3. University of Central Florida