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1、Tutorial:ModelingaSingle-Channel,Counter-FlowPolymerElectrolyteMembrane(PEM)FuelCellIntroductionThepurposeofthistutorialistoprovideguidelinesandrecommendationsforusingthePEMFuelCelladd-onmoduleavailableinFLUENT.Thistutorialdemonstrateshowtodothefollowing:Buildandgenerateameshforas
2、ingle-channelPEMfuelcell.AssignzonenamesandtypesthatarerequiredintheFLUENTPEMfuelcelladd-onmodule.ImportthemeshintoFLUENT,setupthecase,andrunthecalculations.Postprocesstheresults.PrerequisitesThistutorialassumesyouarefamiliarwithboththeGAMBITandFLUENTinterfacesandthatyouhaveagoo
3、dunderstandingofthebasicsetupandsolutionprocedures.Detailsofmoststepswillnotbeshownexplicitly.IfyouhavenotusedFLUENTbefore,itwouldbehelpfultorstrefertotheFLUENT6.3User'sGuideandtheFLUENT6.3TutorialGuide.YoucanalsorefertotheGAMBITUser'sGuide,GAMBITTutorialGuide,andGAMBITModelingGui
4、de.ProblemDescriptionAschematicdescriptionofasingle,straight-channel,counter-
owPEMfuelcellisshowninFigure1.Thedimensionsofthefuelcellare2.42.88125mminthex,y,andzdirections,respectively.Thismodelrepresentsarepeatingchannelofalargercounter-
owPEMfuelcell.Thecross-sectionalareaofth
5、emembraneelectrodeassemblyis2:4125=300mm2.AllthezonesasmarkedinFigure1(withexceptionoftheoptionalcoolingchannel)mustbedenedasseparatezoneswithinGAMBIT.Notethattherecanbemultiplesofeachzone.Forexample,therecanbemultiplecathodegasdiusionlayers,eachwithdierentmaterialproperties.In
6、FLUENT6.3,allcontinuumzonesmustbeofthe
uidtypeexceptforthecurrentcollectorswhichmaybeeithersolidor
uid.Forsimplicity,itisrecommendedthatyoumakethecurrentcollectorssolidcontinuumzones.cFluentInc.February12,20071ModelingaSingle-Channel,Counter-FlowPolymerElectrolyteMembrane(PEM)FuelC
7、ellFigure1:PEMFuelCellZonesFordetailsabouttheFLUENTPEMFCmodel,refertoofFLUENT6.3FuelCellModulesManual.Note:IfyouwouldliketobypassallGAMBITstepsandproceedtotheFLUENTportionofthetutorial,skiptoStep.PreparationinGAMBIT1.Createafoldercalledpem-single-channeltocontainthelesgeneratedint
8、histutorial.2.StartGAMBITa