Title of article :
Simulatinglarge-scalebubbleplumesusingvariousclosureandtwo-phaseturbulencemodelsOriginalResearchArticle
Author/Authors :
R.Zboray، نويسنده , , F.DeCachard، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Abstract :
Large-scale,bubblyplumeshavebeensimulatedbyacommercialCFDcodeusingvariousmodelsandcorrelationsfortheinterfacialforcesbetweenthephasesandforbubble-inducedturbulence.Steady-statesimulationresultsarecomparedwithtime-averageplumebehaviourobtainedfromanovelexperimentalseriesonlarge-scalebubbleplumes.Numericaleffectslikee.g.numericalschemeandgriddependenceareexaminedandtheimportantissueofplumefluctuationsisaddressed.Itisshownthatitisnecessarytoincludeanappropriatemodelforthelateralinterfacialforceslikeliftandturbulentdispersiontoobtainthecorrectspreadingoftheplumeobservedexperimentally.Includingthoseandusingstandarddragcoefficient,theagreementwiththeexperimentsisreasonable.Thedifferenttwo-phaseturbulencemodelsareeitherinappropriateorhaveverylittleinfluenceonthesimulationresults,whichdonotpredictthegasvelocityeverywhereintheplumecorrectly.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
