Flunt帮助算例总结.docx
- 文档编号:12758847
- 上传时间:2023-04-21
- 格式:DOCX
- 页数:7
- 大小:30.64KB
Flunt帮助算例总结.docx
《Flunt帮助算例总结.docx》由会员分享,可在线阅读,更多相关《Flunt帮助算例总结.docx(7页珍藏版)》请在冰豆网上搜索。
Flunt帮助算例总结
1.IntroductiontoUsingFLUENT
TheproblemtobeconsideredisshownschematicallyinFigure 1.1.Acoldfluidat26
Centersthroughthelargepipeandmixeswithawarmerfluidat40
Cintheelbow.Thepipedimensionsareininches,andthefluidpropertiesandboundaryconditionsaregiveninSIunits.TheReynoldsnumberatthemaininletis2.03
105,sothataturbulentmodelwillbenecessary.
Figure1.1:
ProblemSpecification
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
Preparation
1.
Copythefiletubebank/tubebank.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory(asdescribedinTutorial 1).
2.
Startthe2DversionofFLUENT.
3.ModelingExternalCompressibleFlow
ProblemDescription
Theproblemconsiderstheflowaroundanairfoilatanincidenceangleof
andafreestreamMachnumberof0.8(
).Thisflowistransonic,andhasafairlystrongshocknearthemid-chord(x/c=0.45)ontheupper(suction)side.Thechordlengthis1m.ThegeometryoftheairfoilisshowninFigure 3.1.
Figure3.1:
ProblemSpecification
Preparation
1.
Copythefileairfoil/airfoil.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory(asdescribedinTutorial 1).
2.
Startthe2DversionofFLUENT.
4.ModelingUnsteadyCompressibleFlow
5.ModelingRadiationandNaturalConvection
6.UsingaNon-ConformalMesh
ProblemDescription
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
Preparation
1.
Copythefilesfilmcool/film_hex.mshandfilmcool/film_tet.mshfromtheFLUENTdocumentationCDtoyourworkingdirectory(asdescribedinTutorial 1).
Step1:
MergingtheMeshFiles
1.
Startthe3Dversionoftmergebytypingutilitytmerge-3datthesystemprompt.
2.
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
Enternameofgridfile(ENTERtocontinue):
film_hex.msh
x,y,zscalingfactor,eg.111:
111
x,y,ztranslation,eg.010:
000
rotaxis(0,1,2),angle(deg),eg.145:
00
Enternameofgridfile(ENTERtocontinue):
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
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Flunt 帮助 总结
![提示](https://static.bdocx.com/images/bang_tan.gif)