About Thermal Boundary Conditions
Use > 
Prescribed Temperature or > 
Convection Condition or > 
Radiation Condition to apply thermal boundary conditions to your model. In defining boundary conditions for a Thermal model, your goal is to limit the temperature of your model (prescribed temperature), or to limit the heat through your model (convection condition). You can use > > 
Symmetry to apply a cyclic symmetry boundary condition, which ensures that the temperatures on the edges of the cut are the same. Your model's heat loads and boundary conditions, along with its loads, provide the software with the real-world conditions that it uses as the basis for analysis.
Prescribed Temperature or > Convection Condition or > Radiation Condition to apply thermal boundary conditions to your model. In defining boundary conditions for a Thermal model, your goal is to limit the temperature of your model (prescribed temperature), or to limit the heat through your model (convection condition). You can use > > Symmetry to apply a cyclic symmetry boundary condition, which ensures that the temperatures on the edges of the cut are the same. Your model's heat loads and boundary conditions, along with its loads, provide the software with the real-world conditions that it uses as the basis for analysis.You can choose from the following types of boundary conditions in Thermal:
• Prescribed Temperatures—Specify prescribed temperatures for various geometric entities.
• Convection Conditions—Create convection conditions that reference geometric entities.
• Symmetry Constraint (native mode only)—Create cyclic symmetry constraints.
Before applying thermal constraints, see Guidelines for Thermal Boundary Conditions or Guidelines for Thermal Boundary Condition Sets.
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