Title of article
AnalysisofthermalstratificationintheprimarycircuitofaVVER-440reactorwiththeCFXcodeOriginalResearchArticle
Author/Authors
Ildik?Boros، نويسنده , , AttilaAsz?di، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
7
From page
453
To page
459
Abstract
ThethermalstratificationcanleadanimportantroleintheagingoftheNPPpipingbecauseofthestressescausedbythetemperaturedifferencesandthecyclictemperaturechanges.Thesestressescanlimitthelifetimeofthepiping,orleadtopenetratingcracks.Forthestressanalyses,thedeterminationofthethermalhydraulicparametersofthestratifiedflowisnecessary,whichcanbesimulatedbycomputationalfluiddynamics(CFD)codes.Theresultsofthesimulationshowthetimedevelopmentandthebreakingupofthestratificationandthetemperaturedistributionofthestratifiedflow.ThemaindifficultyoftheseCFDsimulationsistheuncertaintyoftheboundaryconditionsbecauseoftheunknownflowcircumstances.Inthispaper,someresultsofCFXsimulationsarepresentedconcerningthepressurizersurgeline,andtheinjectionpipeoftheHPISforVVER-440typereactors.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2008
Journal title
Nuclear Engineering and Design Eslah
Record number
895018
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