Title of article :
CFDsimulationsoflightgasreleaseandmixingintheBattelleModel-ContainmentwithCFXOriginalResearchArticle
Author/Authors :
HeinzWilkening، نويسنده , , DanieleBaraldi، نويسنده , , MatthiasHeitsch، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Inthisvalidationworktwoturbulencemodels(k–ɛandSSTmodel)andtwogrids(afinerhybridgridandatetrahedralcoarsergrid)areconsideredinordertomodelheliumreleaseanddispersion.SimulationresultsarecomparedagainstanexperimentofjetreleasephenomenaintheBattelleModelContainmentfacility(BMC),amulti-compartmentfacilitywithatotalvolumeofabout560m3.Intheselectedtest,HYJETJx7,heliumwasreleasedintothecontainmentataspeedof42m/soveratimeof200s.Althoughthek–ɛmodelisthemostcommonlyusedturbulencemodelinmostComputationalFluidDynamics(CFD)applications,itdoesnotprovidethemostaccuratepredictionsforthisapplication.AlternativelytheSSTturbulencemodelhasbeenemployedgivingmoreaccurateresults.ThisinvestigationprovidesafurtherconfirmationthatthevalidationofcommercialCFDcodesisalwaysrequiredinordertoselectthemoresuitablephysicalmodelsandcomputationalgridsforeachspecificapplication.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
