Title of article :
ExperimentalmeasurementoffrictionallawunderCCFLinporousdebrisOriginalResearchArticle
Author/Authors :
YutakaAbe، نويسنده , , YukioSudo، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Counter-currentflowlimitation(CCFL)isthedominantphenomenafordryoutinporousdebris,whichwouldbeformedduringasevereaccidentofanuclearpowerplant.SinceflowatCCFLinporousdebrisisfarawayfromnormaltwo-phaseflowinapipe,itisnotclearwhethertheinterfacialfrictionlawsinapipecanbeappliedtotheCCFLinporousdebris.Inthepresentexperimentalresearch,thevoidfractioninporousdebrisismeasuredsimultaneouslywiththedifferentialpressureandflowratesforgasandliquid.ThecombinationofthesesimultaneouslymeasureddatamakesitpossibletoestimatetheshearstressesandfrictionfactorsinaporousdebrisatCCFL.ItresultsthatthewallfrictionfactorestimatedislargerthantheErgunequationproposedforsingle-phaseflowinaporousbed.Furthermore,theinterfacialfrictionfactorestimatediswellcorrelatedbythetheoreticalcorrelationderivedherefromaforcebalanceforahypotheticalflowchannelinporousdebrisatCCFL.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
