Title of article :
Modelevaluationoftwo-groupinterfacialareatransportequationforconfinedupwardflowOriginalResearchArticle
Author/Authors :
XiaodongSun، نويسنده , , SeungjinKim، نويسنده , , MamoruIshii، نويسنده , , StephenG.Beus، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2004
Abstract :
Thebubbleinteractionmechanismshavebeenanalyticallymodeledinthefirstpaperofthisseriestoprovidemechanisticconstitutiverelationsforthetwo-groupinterfacialareatransportequation(IATE),whichwasproposedtodynamicallysolvetheinterfacialareaconcentrationinthetwo-fluidmodel.Thispaperpresentstheevaluationapproachandresultsofthetwo-groupIATEbasedonavailableexperimentaldataobtainedinconfinedupwardflow,namely,11datasetsinornearbubblyflowand13setsincap-turbulentandchurn-turbulentflows.Thetwo-groupIATEisevaluatedinsteady-state,one-dimensional(1D)form.Toaccountfortheinter-groupbubbletransport,thevoidfractiontransportequationforGroup-2bubblesisalsousedtopredictthevoidfractionforGroup-2bubbles.Agreementbetweenthedataandthemodelpredictionsisreasonablygoodandtheaveragerelativedifferenceforthetotalinterfacialareaconcentrationbetweenthe24datasetsandpredictionsiswithin7%.Themodelevaluationdemonstratesthecapabilityofthetwo-groupIATEfocusedonthecurrentconfinedflowtopredicttheinterfacialareaconcentrationoverawiderangeofflowregimes.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
