Title of article
ModelingofcontainmentatmospheremixingandstratificationexperimentusingaCFDapproachOriginalResearchArticle
Author/Authors
IvoKljenak، نويسنده , , MiroslavBabi?، نويسنده , , BorutMavko، نويسنده , , IvanBajsi?، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
11
From page
1682
To page
1692
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
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
941288
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