Flunt帮助算例总结Word文档格式.docx

Flunt帮助算例总结Word文档格式.docx

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Preparation

1.Copythefileelbow/elbow.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory.

ForUNIXsystems,youcanfindthefilebyinsertingtheCDintoyourCD-ROMdriveandgoingtothefollowingdirectory:

/cdrom/fluent6.0/help/tutfiles/

wherecdrommustbereplacedbythenameofyourCD-ROMdrive.

ForWindowssystems,youcanfindthefilebyinsertingtheCDintoyourCD-ROMdriveandgoingtothefollowingdirectory:

cdrom:

\fluent6.0\help\tutfiles\

wherecdrommustbereplacedbythenameofyourCD-ROMdrive（e.g.,E）.

2.Startthe2DversionofFLUENT.

2.ModelingPeriodicFlowandHeatTransfer

ProblemDescription

Thisproblemconsidersa2Dsectionofatubebank.AschematicoftheproblemisshowninFigure 

2.1.Thebankconsistsofuniformlyspacedtubeswithadiameterof1cm,thatarestaggeredinthedirectionofcross-fluidflow.Theircentersareseparatedbyadistanceof2cminthexdirection,and1cmintheydirection.Thebankhasadepthof1m.

Becauseofthesymmetryofthetubebankgeometry,onlyaportionofthedomainneedstobemodeled.ThecomputationaldomainisshowninoutlineinFigure 

2.1.Amassflowrateof0.05kg/sisappliedtotheinflowboundaryoftheperiodicmodule.Thetemperatureofthetubewall（

）is400Kandthebulktemperatureofthecross-flowwater（

）is300K.ThepropertiesofwaterthatareusedinthemodelareshowninFigure 

2.1.

Figure2.1:

SchematicoftheProblem

1.

Copythefiletubebank/tubebank.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory（asdescribedinTutorial 

1）.

2.

Startthe2DversionofFLUENT.

3.ModelingExternalCompressibleFlow

Theproblemconsiderstheflowaroundanairfoilatanincidenceangleof

andafreestreamMachnumberof0.8（

）.Thisflowistransonic,andhasafairlystrongshocknearthemid-chord（x/c=0.45）ontheupper（suction）side.Thechordlengthis1m.ThegeometryoftheairfoilisshowninFigure 

3.1.

Figure3.1:

Copythefileairfoil/airfoil.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory（asdescribedinTutorial 

Startthe2DversionofFLUENT.

4.ModelingUnsteadyCompressibleFlow

5.ModelingRadiationandNaturalConvection

6.UsingaNon-ConformalMesh

Thisproblemconsidersamodelofa3Dsectionofafilmcoolingtestrig.AschematicisshowninFigures 

6.1and6.2.Theproblemconsistsofaduct,24.5inlong,withcross-sectionaldimensionsof0.75in

5in.Anarrayofuniformlyspacedholesislocatedatthebottomoftheduct.Eachholehasadiameterof0.5inches,isinclinedat35degrees,andisspaced1.5inchesapartlaterally.Coolerinjectedairentersthesystemthroughtheplenum,withcross-sectionaldimensionsof3.3in

1.25in.

Becauseofthesymmetryofthegeometry,onlyaportionofthedomainneedstobemodeled.ThecomputationaldomainisshowninoutlineinFigure 

6.2.Thebulktemperatureofthestreamwiseair（

）is273K,andthevelocityoftheairstreamis20m/s.Thebottomwalloftheductthatintersectstheholearrayisassumedtobeacompletelyinsulated（adiabatic）wall.Thesecondary（injected）airenterstheplenumatauniformvelocityof0.4559m/s.Thetemperatureoftheinjectedair（

）is136.6 

K.ThepropertiesofairthatareusedinthemodelareshowninFigure 

6.2.

Figure6.1:

SchematicoftheProblem,FrontView

Figure6.2:

SchematicoftheProblem,TopView

Copythefilesfilmcool/film_hex.mshandfilmcool/film_tet.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory（asdescribedinTutorial 

Step1:

MergingtheMeshFiles

Startthe3Dversionoftmergebytypingutilitytmerge-3datthesystemprompt.

Providethemeshfilenamesfilm_tet.mshandfilm_hex.mshasprompted.Providescalingof1andtranslationsandrotationsofzeroforeachmeshfile.Savethenewmergedmeshfileasfilmcool.msh.

Append3Dgridfiles.

tmerge3DFluentInc,Version2.1.8

Enternameofgridfile（ENTERtocontinue）:

film_tet.msh

x,y,zscalingfactor,eg.111:

111

x,y,ztranslation,eg.010:

000

rotaxis（0,1,2）,angle（deg）,eg.145:

00

film_hex.msh

<

ENTER>

Enternameofoutputfile:

filmcool.msh

!

Themeshfilesmustbereadintotmergeinthisorderforthetutorialtorunaswritten.Otherwise,zonenamesandnumberswillbeassigneddifferentlywhenthefilesaremergedtogether.Ingeneral,however,youcanspecifyfilestobereadintotmergeinanyorder.

7.UsingaSingleRotatingReferenceFrame

8.UsingMultipleRotatingReferenceFrames

9.UsingtheMixingPlaneModel

10.UsingSlidingMeshes

11.ModelingSpeciesTransportandGaseousCombustion

12.UsingtheNon-PremixedCombustionModel

13.ModelingSurfaceChemistry

14.ModelingEvaporatingLiquidSpray

15.UsingtheVOFModel

16.ModelingCavitation

17.UsingtheMixtureandEulerianMultiphaseModels

18.UsingtheEulerianMultiphaseModelforGranularFlow

19.ModelingSolidification

20.Postprocessing

21.TurboPostprocessing

22.ParallelProcessing