Title of article :
DevelopmentofthecriticalfilmthicknesscorrelationforanadvancedannularfilmmechanisticdryoutmodelapplicabletoMARScodeOriginalResearchArticle
Author/Authors :
Ji-HanChun، نويسنده , , Won-JaeLee، نويسنده , , CheolPark، نويسنده , , Un-ChulLee، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
Itisgenerallyassumedinthemechanisticfilmdryoutmodelthatthecriticalheatflux(CHF)ariseswhenliquidfilmcalculatedfromevaporation,dropletentrainmentanddepositiongetsdryout.Thedryoutoffilmisusuallyassumedwhenfilmthicknessbecomeszero.However,itwasindicatedthatthecompletedryoutassumptioncanestimateCHFwellforuniformheatingcasebutcannotsimulateaccuratelyfornon-uniformheatingcase.Thecriticalfilmthicknessconceptmaybeanappropriateapproachphysicallybecausethereisapossibilityofinstantaneousdisappearanceofliquidfilmwhenitgetsverythin.Therefore,acriticaldryoutfilmthicknesscorrelationwasdevelopedtoproperlymodeldryoutphenomenontogetherwithMARScodebasedonexperimentaldata.ThemodifiedversionofMARSimplementinganewlydevelopedcriticaldryoutfilmthicknesscorrelationwasassessedusingvariousdryoutdataincludingthoseofnon-uniformheatingcaseandflowreductiontransienttest.Thepredictionresultsshowedimprovedagreementwiththeexperimentaldata.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah