MHD flow of a visco-elastic fluid through a porous medium between infinite parallel plates with time dependent suction

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摘要 ThisworkprovidesacomprehensivetheoreticalanalysisofMHDunsteadyfreeconvectionviscoelasticfluidflowthroughaporousmedium.Themediumistreatedasincompressibleandopticallytransparent.Theflowofthefluidisinitiatedbyshearingactionofthemovingwallwithtimedependentsuction.Radiativeheatflowisconsideredintemperatureequation.Thecouplednonlinearproblemhasbeensolvedasymptotically.Approximatesolutionshavebeenobtainedforthemeanvelocity,meantemperatureusingmultiparameterperturbationtechnique.Theoriginalityofthepresentstudyistoinvestigatetheeffectofviscoelasticpropertyofthefluid(WaltersB?model)ontheflowandheattransferphenomenawhentheflowispermeatedthroughaporousmediumwithuniformporousmatrixsubjecttotransversemagneticfieldandtimedependentfluctuativesuctionattheboundarysurface.Thecaseofviscousflowhasbeendiscussedasaparticularcaseoncomparisonwiththeresultreportedearlieranditisingoodagreement.Flowreversalisindicatedincaseofviscoelasticfluidwithhighheatcapacityinthepresenceofmagneticfield.Thehighercoolingoftheplateincaseofviscoelasticflowalsocausesaflowreversal.
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出版日期 2015年05月15日(中国期刊网平台首次上网日期,不代表论文的发表时间)