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1、InternationalJournalofHeatandMassTransfer53(2010)645–655ContentslistsavailableatScienceDirectInternationalJournalofHeatandMassTransferjournalhomepage:www.elsevier.com/locate/ijhmtAcoupledvolume-of-fluidandlevelset(VOSET)methodforcomputingincompressibletwo-phaseflowsD.L.Su
2、n,W.Q.Tao*StateKeyLaboratoryofMultiphaseFlowinPowerEngineering,SchoolofEnergy&PowerEngineering,Xi’anJiaotongUniversity,Xi’an,Shaanxi710049,PRChinaarticleinfoabstractArticlehistory:Acoupledvolume-of-fluidandlevelset(VOSET)method,whichcombinestheadvantagesandovercomesRecei
3、ved24February2009thedisadvantagesofVOFandLSmethods,ispresentedforcomputingincompressibletwo-phaseflows.InReceivedinrevisedform28August2009thismethodVOFmethodisusedtocaptureinterfaces,whichcanconservethemassandovercometheAccepted23September2009disadvantageofnonconservatio
4、nofmassinLSmethod.AniterativegeometricoperationproposedbyAvailableonline10November2009authorisusedtocalculatethelevelsetfunction/nearinterfaces,whichcanbeappliedtocomputetheaccuratecurvaturejandsmooththediscontinuousphysicalquantitiesnearinterfaces.ByusingKeywords:thele
5、velsetfunction/thedisadvantagesofVOFmethod,inaccuracyofcurvatureandbadsmoothnessVOFmethodofdiscontinuousphysicalquantitiesnearinterfaces,canbeovercome.FinallythecomputingresultsLSmethodVOSETmethodmadewithVOSETmethodarecomparedwiththosemadewithVOFandLSmethods.Volumefract
6、ionfunctionÓ2009PublishedbyElsevierLtd.Levelsetfunction1.IntroductionadvantagesandovercomesthedisadvantagesofVOFandLSmethods,ispresentedforcomputingtheincompressibletwo-phaseFlowswithaspatialvariationoffluidproperties,suchasgas–flows.InthefollowingabriefreviewontheVOFandL
7、Smethodsandliquidinterfacesduetodensityandviscositydifferences,canbetheiradvantages/disadvantagesarepresented.foundinmanynaturalandindustrialprocessessuchaschemicalIntheVOFmethod,avolumefractionfunctionC,whosevaluereactor,powerplant,copperrefiningandinternalcombustionlie
8、sbetween0and1,isdefinedtodenotewhetheraspaceisoccu-engine.Thegenerationofvorticitybythediscontinuousfluidprop-pi