Title of article :
Three-dimensionalanalysisofflowcharacteristicsonthereactorvesseldowncomerduringthelaterefloodphaseofapostulatedLBLOCAOriginalResearchArticle
Author/Authors :
Tae-SoonKwon، نويسنده , , Choeng-RyulChoi، نويسنده , , Chul-HwaSong، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
Athree-dimensionalCFDanalysishasbeenperformedontheflowcharacteristicsinthereactorvesseldowncomerduringthelaterefloodphaseofapostulatedlarge-breakloss-of-coolantaccident(LBLOCA),inordertovalidatethemodifiedlinearscalingmethodologythatwasappliedintheMIDAStestfacilityofKoreaAtomicEnergyResearchInstitute.Theverticalandcircumferentialvelocitysimilaritiesarenumericallytestedforthe1/1and1/5linearscalemodelsfortheAPR1400reactorvesseldowncomer.Theeffectsofscaleonflowpatterns,pressureandvelocitydistributions,andtheimpingingjetbehaviorareanalyzedwiththeFLUENTcode.Inaddition,asimplifiedhalfcylindermodelwithasingleemergencycorecooling(ECC)nozzleisnumericallytestedtoinvestigatethescaleeffectonthespreadingwidthandbreak-upofECCwaterfilm.Thequalitativeandquantitativeresultsindicatethatthe1/5modifiedlinearscalemodelofthereactorvesseldowncomerwouldreasonablypreservethehydrodynamicsimilaritywithAPR1400.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
