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Temperature Curve

The Temperature Curve dialog box lets you create or import a temperature curve to define temperature-dependent quantities for transient thermal studies. You define X and Y pairs. The X value represents the temperature and the Y value represents a multiplier to the associated quantity. You can use time curves to define the following quantities as functions of time:

  • Coefficient of convection

  • Heat flux .

  • Heat power

  • Emissivity

To define a temperature curve:

  1. In the PropertyManager of a thermal load in a thermal study, click Use Temperature curve , then click Edit.

  2. In the Temperature curve dialog box:

    1. In the Curve information box, enter a Name for the temperature curve.

    2. Set the Units for the X (Temperature) column. The Y values are dimensionless since they are just multipliers to the quantity specified in the PropertyManager for the associated thermal load/restraint.

    3. Edit the curve data as desired.

To add a row, double-click in any cell in the Points column. To delete selected rows, right-click the selection and select Delete, or press the Delete button on your keyboard.

  1. To save the curve for subsequent use, click Save Curve, specify a name and a destination folder for the curve data file, and click Save.

The program adds the extension .cwcur to the filename. The specified curve can be used with other documents.

  1. Click OK.

  1. In the PropertyManager, to view the actual values of the specified load/restraint, under Variation with time click View.

  2. Close the graph window.

To import an existing temperature curve:

  1. In a load or restraint PropertyManager in a nonlinear or transient thermal study, click Use Temperature Curve , then click Edit.

  2. In the Temperature curve dialog box opens, click Get Curve.

  3. In the Function Curves dialog box:

  1. Select the desired curve database file (*.cwcur).

             Note that the imported curve appears under Temperature Curve in the Curve Library window.

  1. Under Curve Library, click the name of the time curve you have just imported.

The curve data appear in the dialog box.

  1. If needed, modify the curve data then click OK.

  1. In the Temperature Curve dialog box , click OK.

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