Title of article :
Shapeoptimizationofwire-wrappedfuelassemblyusingKrigingmetamodelingtechniqueOriginalResearchArticle
Author/Authors :
WasimRaza، نويسنده , , Kwang-YongKim، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Inthiswork,shapeoptimizationofawire-wrappedfuelassemblyinaliquidmetalreactorhasbeencarriedoutbycombiningathree-dimensionalReynolds-averagedNavier–StokesanalysiswiththeKrigingmethod,awell-knownmetamodelingtechniqueforoptimization.Sequentialquadraticprogramming(SQP)isusedtosearchtheoptimalpointfromtheconstructedmetamodel.TwogeometricdesignvariablesareselectedfortheoptimizationanddesignspaceissampledusingLatinHypercubeSampling(LHS).Theoptimizationproblemhasbeendefinedasamaximizationoftheobjectivefunction,whichisasalinearcombinationofheattransferandfrictionlossrelatedtermswithaweighingfactor.Theobjectivefunctionvalueismoresensitivetotheratioofthewirespacerdiametertothefuelroddiameterthantotheratioofthewirewrappitchtothefuelroddiameter.Theoptimalvaluesofthedesignvariablesareobtainedbyvaryingtheweightingfactor.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah