Title of article
ComputationalFluidDynamicsfornuclearapplications:fromCFDtomulti-scaleCMFDOriginalResearchArticle
Author/Authors
G.Yadigaroglu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
12
From page
153
To page
164
Abstract
Newtrendsincomputationalmethodsfornuclearreactorthermal–hydraulicsarediscussed;traditionally,thesehavebeenbasedonthetwo-fluidmodel.AlthoughCFDcomputationsforsinglephaseflowsarecommonplace,ComputationalMulti-FluidDynamics(CMFD)isstillunderdevelopment.One-fluidmethodscoupledwithinterfacetrackingtechniquesprovideinterestingopportunitiesandenlargethescopeofproblemsthatcanbesolved.Forcertainproblems,onemayhavetoconduct“cascades”ofcomputationsatincreasinglyfinerscalestoresolveallissues.Thecasestudyofcondensationofsteam/airmixturesinjectedfromadownward-facingventintoapoolofwaterandaproposedCMFDinitiativetonumericallymodelCriticalHeatFlux(CHF)illustratesuchcascades.Fortheventingproblem,avarietyoftoolsareused:asystemcodeforsystembehaviour;aninterface-trackingmethod(VolumeofFluid,VOF)toexaminethebehaviouroflargebubbles;direct-contactcondensationcanbetreatedeitherbyDirectNumericalSimulation(DNS)orbyanalyticalmethods.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894846
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