Title of article
Single-phaseCFDapplicabilityforestimatingfluidhot-spotlocationsina5×5fuelrodbundleOriginalResearchArticle
Author/Authors
KazuoIkeda، نويسنده , , YasushiMakino، نويسنده , , MasayaHoshi، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
6
From page
1149
To page
1154
Abstract
High-thermalperformancePWRspacergridsrequirebothoflowpressurelossandhighcriticalheatflux(CHF)properties.Therefore,anumericalstudyusingcomputationalfluiddynamics(CFD)wascarriedouttoestimatepressurelossinstrapandmixingvanestructures.Moreover,aCFDsimulationundersingle-phaseflowconditionwasconductedforonespecificconditioninawaterdeparturefromnucleateboiling(DNB)testtoexaminetheapplicabilityoftheCFDmodelforpredictingtheCHFrodposition.EnergyfluxaroundtherodsurfaceinawaterDNBtestisthesumoftheintrinsicenergyfluxfromarodandtheextrinsicenergyfluxfromotherrods,andincrementsoftheenthalpyanddecrementsofflowvelocityneartherodsurfaceareassumedtoaffectCHFperformance.CFDmakesitpossibletomodelthecomplicatedflowfieldconsistingofaspacergridandarodbundleandevaluatethelocalvelocityandenthalpydistributionaroundtherodsurface,whichareassumedtodeterminetheinitialconditionsforthetwo-phasestructure.Theresultsofthisstudyindicatethatsingle-phaseCFDcanplayasignificantroleindesigningPWRspacergridsforimprovedCHFperformance.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
896067
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