Tutorial: Conjugate Heat Transfer
Learn how to run a conjugate heat transfer analysis with a simple model.
Import Geometry
- On the File menu, select Import.
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Browse to the CHT_Tutorial.x_b file.
The model is loaded.Note: The model is comprised of the following parts:
- Channel
- Component 1
- Component 2
- Component 3You can view these parts in the Object Browser:
Designate the Bounding Solid Domain
-
Click the Bounding Solid icon.
Tip: To find and open a tool, press Ctrl+F. For more information, see Find and Search for Tools.
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Box select all parts in the model to designate the Bounding
Solid domain.
Selected parts will turn red.
- In the microdialog, choose Steel (AISI 304) for the bounding solid domain.
-
Right-click and mouse through the check mark to exit, or
double-right-click.
The parts designated as Bounding Solid domains will turn black.
Create the Fluid Domain
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Click the Create Fluid Domain icon.
A new fluid domain is detected and created.
- In the microdialog, choose a fluid type.
-
Right-click and mouse through the check mark to exit, or
double-right-click.
The new fluid domain turns blue.
Designate Inlets
-
Select the Inlet icon.
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Select a face in the fluid domain where you would like to define an inlet. An
arrow appears at each defined inlet.
- In the microdialog, enter .25 m/s for the Average Velocity. Use the default value of 298.15 K for the temperature.
- Right-click and mouse through the check mark to exit, or double-right-click.
Designate Outlets
- Click the Outlet icon.
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Select a face in the fluid domain where you would like to define an outlet.
An arrow appears at each defined outlet.
- Enter 0 Pa for guage pressure for the outlet face.
- Right-click and mouse through the check mark to exit, or double-right-click.
Define Thermal Conditions
-
Click the Face icon.
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Select Solids.
Note: Ambient Temperature and Ambient HTC values can be changed as necessary. The default values are 293.15 K and 0 W/(m2*K). This option does not require any selection of parts or faces.
-
Select Component 1 and
Component
2 in the model.
The microdialog appears with the following options:
- Temperature
- Convection
- Heat Flux
- Select the dropdown menu in the microdialog, then choose Heat Flux.
- Enter 50 W/m2 for the Heat Flux.
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On the Fluids ribbon, select the
Part tool.
- Select Component 3.
- In the microdialog, select Total Power from the dropdown, and then enter 200.0 W.
-
In the guidebar, enter 298.15 K for Ambient
Temperature, and 25 W/(m2*K) for
Ambient HTC.
- Right-click and mouse through the check mark to exit, or double-right click.
Configure Solver Settings
-
Click the Custom Fluids Run icon.
- In the Simulation tab, set the Number of voxels to 100,000 and the Voxel size to .0023 m
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Enable Compute thermal problem and
Include solids.
- Click Run.
Monitor Convergence Plots
While the analysis is running, monitor the convergence plots. The convergence
plots automatically appear after you click Run.
Review Simulation Results
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Once the simulation is completed, a green flag appears in the
Analyze tool group.
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Click the green flag to Import Completed Runs.
The results from the simulation will load in the modeling window.
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Generate different result types using the Analysis
Explorer.
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Optionally, you can create local streamlines in the model:
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Click to visualize your results with vectors.
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Under Result Types, use the dropdown menu to select
Velocity.
Results visualized as Velocity are displayed.
- Deselect Vectors as the result Style Option.
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Under Result Types, use the dropdown menu to select
Temperature.
Results visualized as Temperature are displayed.
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You can make a section cuts of the temperature results.