应用培训教程 多孔介质.ppt

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1、XFlow应用培训教程（9）——多孔介质QQ群：200378871OverviewSinglephaseexternalWindtunnelPorousjumpPorousvolumeWS09–PorousmediaEngine:Dimension:3DSinglephaseexternalThermalmodel:IsothermalAcousticanalysis:OffEnvironment:Turbulencemodel:AutomaticNogravitylawsInitialvelocit

2、yfield:AutomaticInitialgaugepressurefield:0PaWindtunneldimensions:(3,0.6,0.6)Velocitylaws:(5m/s,0,0)1.Environment:FreesurfaceinternalWS09–PorousmediaFluid:AirbydefaultThermodynamicpropertiesViscositymodel:Newtonian2.Materials:AirWS09–PorousmediaCase1:Po

3、rousJumpIsotropicLowpermeability3.Geometry:ImporttheporousmediaImportgeometry:HitthebuttonBrowsethefileWS09–Porousmedia3.Geometry:SettheporousjumpSurface:Position:(-0.5,0,0)Orientation:(0,0,0)Porousboundarycondition:Boundarycondition:PorousjumpPorosityt

4、ype:IsotropicPermeabilitycoefficient[k]:1E-08Erguncoefficient[cE]:0.2Surfacethickness[th]:0.001mWS09–PorousmediaTimediscretization:Simulationtime:4sAutomatictimestepcalculationCourantnumber:14.Simulation:SetthenumericalparametersDatastorage:FoldernameFr

5、equencyofsamples:20HzResolution:Resolvedscale:0.05mRefinement:DisabledWS09–Porousmedia5.RunthesimulationRunthecalculation:Hitbutton“Run”WS09–Porousmedia5.VelocityvectorsevolutionDisplayvelocityvectors:Field:VelocityMode:VectorsCuttingplaneZPlayforward:H

6、itthebutton“Play”ObservethevectorsWS09–Porousmedia5.PressuredropmeasurementDisplaypressurecontours:Field:StaticPressureMode:3dfieldCuttingplaneZInterpolationmode:OffWS09–Porousmedia5.PressuredropmeasurementMeasurepressure:Selectthe“Lookupvalue”toolMeasu

7、repressureoutlettheplaneMeasurepressureinlettheplane2.72864-72.627=-69.8984=-69.197WS09–PorousmediaCase2:PorousJumpIsotropicHighpermeability3.Geometry:ImporttheporousmediaImportgeometry:HitthebuttonBrowsethefileWS09–Porousmedia3.Geometry:Settheporousjum

8、pSurface:Position:(-0.5,0,0)Orientation:(0,0,0)Porousboundarycondition:Boundarycondition:PorousjumpPorositytype:IsotropicPermeabilitycoefficient[k]:1Erguncoefficient[cE]:0.2Surfacethickness[th]:0.001mWS09–Porousmedia5.Runthesimul