ANSYS-ICEM教程ANSYS-ICEM-CFD-IntroductoryWingbodyPrismV12

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1、Chapter5PrismMeshingPrismMeshing–Workshop2WingbodyICEMCFDIntroductoryCourseANSYS,Inc.ProprietaryJuly2009©2009ANSYS,Inc.Allrightsreserved.WS5.2-1Inventory#002664PrismMeshing–Workshop2“Bottomup”VolumeMeshingTrainingManual•First,extrudeprismmeshfromstandalonesurfacemesh–“Bottomup”approac

2、h–Couldalsoextrudeintoexistingvolumemesh(traditionalmethod),“topdown”approach•Generaterestofgrid–Farfieldvolume–Delauney•Usedensityregion–Definemeshsizeforrefinement–InareawherenogeometryexistsInareawherenogeometryexists•CreateHexacore–Formajorityhexfillinfarfield•ChooseFile>OpenProje

3、ct–Toloadpreviouslysavedsurfacemeshandgeometry–BrowsetoWingbodyworkingIfpreviousprojectwasnotcompleted,loadthedirectorygeometryF6_compllttiete.tinandthdthemeshh–Loadpreviousprojectf6_surf.unsANSYS,Inc.ProprietaryJuly2009©2009ANSYS,Inc.Allrightsreserved.WS5.2-2Inventory#002664PrismMesh

4、ing–Workshop2GlobalPrismParametersTrainingManual•Setglobalprismparameters–Mesh>GlobalMeshSetup>PrismMeshingParameters–SetGrowthlawtoexponential(default)–Initialheight=0•Heightdeterminedautomaticallysothatlastprismissimilarvolumetoadjacenttetra•Proportionaltosizeoftriangle–Heightratio=

5、1.2–Numberoflayers=5–Newvolumepart=LIVE•Scrolldowntoaccess•Wewillcreateprismfromasurface-onlymesh•ThevolumeparttiisnecessarywhenextrudingfromsurfacemeshANSYS,Inc.ProprietaryJuly2009©2009ANSYS,Inc.Allrightsreserved.WS5.2-3Inventory#002664PrismMeshing–Workshop2PickPartsforPrismMeshTrain

6、ingManual•SelectPartsandComputeprismmesh–Mesh>ComputeMesh>PrismMesh–PressSltPtfPiSelectPartsforPrismLLayer•FAIRING,FUSELAGE,WING–Apply,thenDismiss–ComputeHeight,heightratio,andnumlayersweresetgloballyANSYS,Inc.ProprietaryJuly2009©2009ANSYS,Inc.Allrightsreserved.WS5.2-4Inventory#002664

7、PrismMeshing–Workshop2DisplayMeshTrainingManual•DisplayPrismmesh–TurnoffFARFIELD–ZoomintoviewprismquadZoomintoviewprismquadfacesonsymmetryplane–TurnonMesh>Volumes>Prismsinmodeltree–ThereisnoothervolumemeshbutprismsUnstructuredmesh,prism.unsissavedautomaticallytotheworkingdirectoryANSY

8、S,Inc