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1、Thermal AnalysisWorkshop 6ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - GoalsIn this workshop we will analyze the pump housing shown below for its heat transfer characteristics.Specifically a plastic and an aluminum version of th
2、e housing will be analyzed using the same boundary conditions.Our goal is to compare the exposed surface temperatures for each configuration and to investigate the distribution of heat flux in the part.February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWork
3、shop SupplementSteady State Thermal AnalysisWorkshop 6 - AssumptionsAssumptions:The pump housing is mounted to a pump which is held at a constant 60 deg. C. We assume the mating face on the pump is also held at this temperature.The interior surfaces of the pump are held at a constant temperature of
4、90 deg. C by the fluid.The exterior surfaces are modeled using a simplified convection correlation for stagnant air at 20 deg. C.February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - Start PageChoose
5、 “A link to a geometry file on my computer or network” and browse to the file “Pump_housing.x_t”.Call the project “Pump_housing” and specify the location provided by the instructor.“Open a new simulation based on the selected geometry”When DS starts, close the Template menu by clicking the X in the
6、corner of the window.Note: by closing the menu we gain some additional space for the graphics view. Also, although we could use the SimWiz to complete this workshop, instructions on manually completing the operations are given.February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS W
7、orkbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - PreprocessingChange the part material to “Polyethylene”:1.Highlight “Part1”2.In the Detail window “Material” field “browse . . .”3.“Open” material “Polyethylene”.123February 13, 2004Inventory #002022WS6-ANSYS Workbench
8、 - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - Environment4.Select the interior (13) surfaces of the pump housing (hint: use adjacent select).5.“RMB Insert Given Temperature”.6.Set “Magnitude” field to 90 C.645February 13, 2004Inventory #002022W
9、S6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal Analysis. . . Workshop 6 - Environment7.Select the mating surface (1) of the pump housing.8.“RMB Insert Given Temperature”.9.Set “Magnitude” field to 60 C.897February 13, 2004Inventory #002022WS6-ANSYS
10、 Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal Analysis. . . Workshop 6 - Environment10.Select the exterior (32) surfaces of the pump housing (hint: use adjacent select).11.“RMB Insert Convection”.1011February 13, 2004Inventory #002022WS6-ANSYS Workbench -
11、 SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal Analysis. . . Workshop 6 - Environment12.In the Details change the “Type” field from “Constant” to “Temperature-Dependent”.13.Choose the correlation “Stagnant Air Simplified Case”.14.Set the “Ambient Temperature” field to
12、 20 deg. C.121413February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - SolutionAdd temperature and total heat flux results.15.Highlight the Solution branch.16.“RMB Insert Thermal Temperature”Repeat t
13、he above steps to add “Total Heat Flux”.1615February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 Duplicate ModelBefore solving we will duplicate the model and specify a different material for the pump
14、 housing. This will allow us to compare the responses for each.17.Highlight the “Model” branch.18.“RMB Duplicate”.19.From the new branch “Model2” highlight “Part1”20.In the detail window, browse to the material “Aluminum”.17181920February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSY
15、S Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - Solution21.Highlight the “Project” branch in the tree and solve.21Note: by issuing a solve from the Project branch both Model branches will be solved. If single solutions are desired highlight only the branch to be
16、solved before beginning the solve.February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - PostprocessingWhen the solutions are complete, inspect the temperature plots and compare. It can be seen quickl
17、y that the choice of material in this case has a significant effect.AluminumPolyethyleneFebruary 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal Analysis. . . Workshop 6 - PostprocessingA similar comparison of the heat flux
18、 in each model points up differences. Here a vector heat flux plot is shown in wireframe mode. Note how much of the energy in the aluminum model is returned via the mating face.AluminumPolyethyleneFebruary 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop
19、SupplementSteady State Thermal Analysis. . . Workshop 6 - PostprocessingTo better view the exterior surface temperatures we will employ scoping as in previous workshops.22.Select the outside (32) surfaces of the pump housing (use adjacent select).23.“RMB Insert Thermal Temperature” (note the scope o
20、f the new result now indicates “32 Faces” rather than “All Bodies”Using RMB, copy/paste the new result into Model 2 Solution branch. Notice the scope of the result remains in tact.Solve from the Project branch.2223February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - Si
21、mulationWorkshop SupplementSteady State Thermal Analysis. . . Workshop 6 - PostprocessingThe 2 new plots now display outside temperatures for both models. Notice the contours are not affected by interior temperatures as were the previous plots.February 13, 2004Inventory #002022WS6-ANSYS Workbench - SimulationANSYS Workbench - SimulationWorkshop SupplementSteady State Thermal AnalysisWorkshop 6 - ReportingIf time permits, create figures to include in a report and generate the report.February 13, 2004Inventory #002022WS6-February 13, 2004Inventory #002022WS6-
