Create a user function thermal coupling

1. On the Thermal page in the Solution dialog box, select the Include File check box.

2. Enter the path to the include file containing the user defined subroutine USERF in the Select File box or click Browse . See User function thermal coupling for more information.

3. Click OK.

4. Choose Home tab→Loads and Conditions group→Thermal Coupling — Advanced .

5. In the Thermal Coupling — Advanced dialog box, from the Type list, select User Function.

6. Select the primary region to represent one of the two regions.When you model conduction between two surfaces, the primary region is typically the smaller of the two surfaces.

7. Select the secondary region.To model conduction between two surfaces, in the Secondary Region group, select the region to represent the second surface.To model conduction between a surface and an entity that is not represented geometrically, do the following:In the Secondary Region Override group, select the Override Secondary Region check box.From the Non-Geometric Element list, select a non-geometric element modeling object, or click Create Modeling Object to create a non-geometric element modeling object.

8. In the Parameter group, in the Correlation Number box, enter the correlation number of the thermal coupling which is the value of the variable ITAB found in the user defined subroutine USERF. See User function thermal coupling for more information.

9. If you are modeling conduction between two surfaces, do the following:In the Parameters group, from the Coupling Resolution list, select the type of coupling resolution.Select the Overlap Projection Direction, or clear the Only Connect Overlapping Elements check box. If the secondary region is a non-geometric element, the Secondary Region Override option is supported only for the One-to-One type of coupling resolution.

10. Click OK.

How do I

Create a 1 Way Thermal Coupling

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User function thermal coupling

Inputs to expressions

Specifying a Coupling Resolution

Using the Only Connect Overlapping Elements option

Using the Overlap Projection Direction option

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1 Way options

User Function options

Auto-generated expressions

Thermal Coupling — Advanced dialog box

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