Prescribed Temperature Conditions
Use > 
Prescribed Temperature in Thermal and FEM mode Thermal to define a temperature boundary condition for one or more geometric or model entities. A prescribed temperature is a thermal boundary condition that limits the temperature of your model. See Guidelines for Thermal Boundary Conditions and Guidelines for Thermal Boundary Conditions for Geometry.
Prescribed Temperature in Thermal and FEM mode Thermal to define a temperature boundary condition for one or more geometric or model entities. A prescribed temperature is a thermal boundary condition that limits the temperature of your model. See Guidelines for Thermal Boundary Conditions and Guidelines for Thermal Boundary Conditions for Geometry.When you click > Prescribed Temperature, the Prescribed Temperature dialog box opens. The dialog box has the following fields:
Prescribed Temperature, the Prescribed Temperature dialog box opens. The dialog box has the following fields:• Name—The name of the boundary condition.
• Member of Set—The name of the boundary condition set. You can select an existing boundary condition set from the drop-down list, or create a new set by clicking New to display the BC Set Definition dialog box.
• References—The list includes the following geometric entities. You can select the geometry for these references before or after you open the Prescribed Temperature dialog box.
• Temperature—Specify values for a prescribed temperature as follows:
◦ Value—Type any real number for the prescribed temperature, arithmetic expression, or parameter. For points and vertices, you can assign only a uniform temperature.
◦ Advanced—Expands the dialog box to display the Spatial Variation drop-down list. For edges, curves, surfaces, 2D plates, and 2D solids, you can assign a spatially varying prescribed temperature.
You can select units for prescribed temperature from the drop-down list adjacent to Value or accept the default units.
• Preview—Adds a series of arrows to your model showing the location and distribution of the prescribed temperature condition.
After you accept the values in dialog box, the software places a prescribed temperature icon at each location you selected.
Refer to the Fundamentals Help for more information on surface sets.