Title of article :
VerificationandvalidationoftheHTGRsystemsCFDcodeFlownexOriginalResearchArticle
Author/Authors :
JanP.vanRavenswaay، نويسنده , , GideonP.Greyvenstein، نويسنده , , WillemM.K.vanNiekerk، نويسنده , , JohanT.Labuschagne، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Abstract :
Regulatoryrequirementsprescribeextensiveverificationandvalidation(V&V)ofcomputercodesthatareusedinthedesignandanalysisofaccidentconditionsinnuclearplants.FlownexisadynamicsystemsCFDcodeusedastheprimarythermal-fluidsimulationcodebythePebbleBedModularReactorCompany(PBMR).
Stringentqualityassuranceprocesseshavebeenimplementedtoensurethatthecodeconformstothesetstandards.TheseprocessesincludethecomparisonofFlownexwithanalyticalresultsaswellaswithexperimentaldata.
Theresultsofthisprocessaresummarizedinthispaper.AnalyticalsolutionsareusedtoverifyFlownexʹselementmodelssoastoensurethatthebasictheoryiscorrectlyimplementedinthecomputercode.AspartoftheanalyticalV&Veffortvariouswell-definedproblemsaresolvedusingnumericalmethodsimplementedinindependentcomputercodes.
ComparisonwithexperimentalandplantdataisaveryimportantfeatureoftheV&Vprogramtovalidatethatthechosentheoryisfitforpurpose.Forthis,validationdatafromthepebblebedmicromodel(PBMM)isused.InadditiontothePBMMexperimentaldataFlownexiscomparedtoanumberofsmallthermal-fluidexperimentsinwhichcertainspecificcomponentphenomenaisvalidated.TheseexperimentsweredevelopedincollaborationwithNorth-WestUniversity(previouslyPotchefstroomUniversity).
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
