Title of article :
ModelingofcontainmentatmospheremixingandstratificationexperimentusingaCFDapproachOriginalResearchArticle
Author/Authors :
IvoKljenak، نويسنده , , MiroslavBabi?، نويسنده , , BorutMavko، نويسنده , , IvanBajsi?، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Anexperimentoncontainmentatmospheremixingandstratification,whichwasoriginallyperformedintheTOSQANfacilityinSaclay(France),wassimulatedwiththeComputationalFluidDynamicscodeCFX4.4.TheTOSQANfacilityconsistsofalargecylindricalvesselinwhichgasesareinjected.Intheconsideredexperiment,steam,airandheliumwereinjectedduringdifferentphasesoftheexperiment,withsteamcondensingonsomepartsofthevesselwalls.Duringcertainphases,steadystateswereobtainedwhenthesteamcondensationratebecameequaltothesteaminjectionrate,withallboundaryconditionsremainingconstant.Inthepresentwork,threesuchintermediatesteadystatesweresimulatedindependently.Theessentialpurposewastoreproducethenon-homogeneousstructureofthevesselatmosphere,giventhatcondensationissimulatedinsuchawaytoobtainthepropercondensationrate.Atwo-dimensionalaxisymmetricmodeloftheTOSQANvesselfortheCFX4.4codewasdeveloped.Theflowinthesimulationdomainwasmodeledassingle-phase.Steamcondensationonvesselwallswasmodeledasasinkofmassandenergy.Calculatedprofilesoftemperature,steamconcentration,andvelocitycomponentsarecomparedtoexperimentalresultsanddiscussed.ThecomparisonsuggeststhatatmospheremixingandstratificationinanNPPcontainmentataccidentconditionscouldbesuccessfullysimulatedusingtheproposedCFDapproach.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
