1、xflow培训讲稿无网格培训讲稿无网格cfd技技术应用培训教程术应用培训教程1球阀球阀Overview Manufacturing Single phase Internal aerodynamicsSpring force with damping Post-processing Stream linesWS03 Ball Check ValveEngine:Dimension:3D Single phase internal Thermal model:isothermal Acoustic analysis:offGlobal attributes:Automatic turbulenc
2、e model No gravity laws Initial velocity field:0 m/s Initial gauge pressure field:0 Pa1.Environment:Single phase internalWS03 Ball Check ValveFluid:Water Thermodynamic properties Viscosity model:Newtonian2.Materials:WaterWS03 Ball Check Valve3.Geometry:Import the valve and sphereImport geometry:Hit
3、the button Browse the filesWS03 Ball Check Valve-Bounding Box:*Axis X:-0.0393409,0.0393409 Size:0.0786818*Axis Y:-0.0156,0.0156 Size:0.0312*Axis Z:-0.0155954,0.0155954 Size:0.03119093.Geometry:Check normals orientationSelect Geometry+Right-clickGOODBADWS03 Ball Check Valve3.Geometry:Adjust location/
4、orientationValve:Position(0,0,0)Orientation(0,180,0)Sphere:Position(-0.014,0,0)Orientation(0,0,0)WS03 Ball Check Valve3.Geometry:Create inlet/outletInlet:Use the edge mode selection Select edges of the surfaceWS03 Ball Check Valve3.Geometry:Create inlet/outletInlet:Hit the button“Create Surface”A ne
5、w“Shape”item is added in the treeOutlet:Same operationWS03 Ball Check Valve3.Geometry:Apply boundary conditionsValve:Behavior:Fixed Boundary Condition:WallSphere:Behavior:Constrained Mass:1 kg Restitution coefficient:0.5 Static friction coefficient:0.5 Dynamic friction coefficient:0.5 Degrees of Fre
6、edom:X Translation Spring force in X:-250*(px-(-0.014)Boundary Condition:WallWS03 Ball Check Valve3.Geometry:Apply boundary conditionsInlet:Behavior:Fixed Boundary Condition:Mass Flow Mass flow law:if(t1.5,0.2,0)Outlet:Behavior:Fixed Boundary Condition:Gauge pressure outlet Gauge pressure law:0 PaWS
7、03 Ball Check ValveTime discretization:Simulation time:2s Automatic time step calculation Courant number:14.Simulation:Set the numerical parametersData storage:Folder name Frequency of samples:100Hz Compute markers:OnResolution:Resolved scale:0.002m Refinement:DisabledWS03 Ball Check Valve5.Run the
8、simulationRun the calculation:Hit button“Run”WS03 Ball Check Valve5.Post-Processing:Markers visualizationMarkers:Visualization field:Velocity Visualization mode:Markers Cutting-plane ZWS03 Ball Check Valve5.Post-Processing:Oscillations trackingRight-clickWS03 Ball Check Valve5.Post-Processing:Stream
9、linesStreamlines:Behavior:Passive From:Inflow Nb of tracers:100 Transient:Off Reference frame:60 Time:1sRight-clickRight-clickWS03 Ball Check Valve5.Post-Processing:StreamlinesLoading dataNew timelineReference framePath lines optionsWS03 Ball Check Valve5.Post-Processing:StreamlinesRight-clickWS03 Ball Check Valve
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