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Article: Electrohydrodynamic stability of couple stress fluid flow in a channel occupied by a porous medium

TitleElectrohydrodynamic stability of couple stress fluid flow in a channel occupied by a porous medium
Authors
KeywordsCouple Stress
Electrohydrodynamic
Nonuniform Transverse Electric Field
Porous Medium
Stability
Issue Date2011
PublisherBegell House Inc.. The Journal's web site is located at http://www.begellhouse.com/journals/3d21681c18f5b5e7
Citation
Special Topics And Reviews In Porous Media, 2011, v. 2 n. 1, p. 11-22 How to Cite?
AbstractThe linear stability of electrohydrodynamic poorly conducting couple stress viscous parallel fluid flow through a porous channel is studied in the presence of a nonuniform transverse electric field using an energy method. Supplemented with a single term Galerkin expansion. The sufficient condition for stability is obtained using the nature of the growth rate as well as sufficiently small values of the Reynolds number, Re. From this condition we show that strengthening or weakening of the stability criterion is dictated by the values of the strength of the electric field, the coefficient of couple stress fluid, and the porous parameter. In particular, it is shown that the interaction of the electric field with couple stress is more effective in stabilizing the poorly conducting couple stress fluid compared with that in an ordinary Newtonian viscous fluid. © 2011 by Begell House Inc.
Persistent Identifierhttp://hdl.handle.net/10722/157114
ISSN
2015 SCImago Journal Rankings: 0.205
References

 

DC FieldValueLanguage
dc.contributor.authorRudraiah, Nen_US
dc.contributor.authorShankar, BMen_US
dc.contributor.authorNg, COen_US
dc.date.accessioned2012-08-08T08:45:24Z-
dc.date.available2012-08-08T08:45:24Z-
dc.date.issued2011en_US
dc.identifier.citationSpecial Topics And Reviews In Porous Media, 2011, v. 2 n. 1, p. 11-22en_US
dc.identifier.issn2151-4798en_US
dc.identifier.urihttp://hdl.handle.net/10722/157114-
dc.description.abstractThe linear stability of electrohydrodynamic poorly conducting couple stress viscous parallel fluid flow through a porous channel is studied in the presence of a nonuniform transverse electric field using an energy method. Supplemented with a single term Galerkin expansion. The sufficient condition for stability is obtained using the nature of the growth rate as well as sufficiently small values of the Reynolds number, Re. From this condition we show that strengthening or weakening of the stability criterion is dictated by the values of the strength of the electric field, the coefficient of couple stress fluid, and the porous parameter. In particular, it is shown that the interaction of the electric field with couple stress is more effective in stabilizing the poorly conducting couple stress fluid compared with that in an ordinary Newtonian viscous fluid. © 2011 by Begell House Inc.en_US
dc.languageengen_US
dc.publisherBegell House Inc.. The Journal's web site is located at http://www.begellhouse.com/journals/3d21681c18f5b5e7en_US
dc.relation.ispartofSpecial Topics and Reviews in Porous Mediaen_US
dc.subjectCouple Stressen_US
dc.subjectElectrohydrodynamicen_US
dc.subjectNonuniform Transverse Electric Fielden_US
dc.subjectPorous Mediumen_US
dc.subjectStabilityen_US
dc.titleElectrohydrodynamic stability of couple stress fluid flow in a channel occupied by a porous mediumen_US
dc.typeArticleen_US
dc.identifier.emailNg, CO:cong@hku.hken_US
dc.identifier.authorityNg, CO=rp00224en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1615/SpecialTopicsRevPorousMedia.v2.i1.20en_US
dc.identifier.scopuseid_2-s2.0-79955910014en_US
dc.identifier.hkuros184751-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-79955910014&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume2en_US
dc.identifier.issue1en_US
dc.identifier.spage11en_US
dc.identifier.epage22en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridRudraiah, N=35935329600en_US
dc.identifier.scopusauthoridShankar, BM=38661655500en_US
dc.identifier.scopusauthoridNg, CO=7401705594en_US

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