Creo Simulate > Creo Simulate > Modeling Structure and Thermal Problems > Thermal Boundary Conditions > Boundary Condition Sets > Guidelines for Thermal Boundary Condition Sets
  
Guidelines for Thermal Boundary Condition Sets
When defining thermal boundary condition sets, use the following guidelines:
• There is no limit to the number of boundary condition sets you can specify for your model.
• As you can specify only one boundary condition set for an analysis, make sure the set contains all the required boundary conditions for that analysis. See Boundary Condition and Load Sets in Thermal Analyses for more information.
• You are not required to select a boundary condition set to run a transient thermal analysis. However, if you do not select a boundary condition set, you must select at least one load set for the analysis to be valid.
• A thermal boundary condition set can include prescribed temperatures and/or convection conditions.
When you define a boundary condition, you can:
• add the boundary condition to an existing boundary condition set
• create a new boundary condition set and enter a description
If you click Cancel, you exit without creating either the thermal boundary condition or the boundary condition set.
If a boundary condition for one or more of the entities you selected already belongs to the boundary condition set, Creo Simulate prompts you to do one of the following:
• Click Yes to replace the existing boundary condition with a new one in the same set.
• Click No to retain the old boundary condition and cancel the new one.
If you click No and want to create the new boundary condition without losing the old one, define the constraint again and select a different boundary condition set.