There are quite a few ways to implement an insulating boundary condition in the HEAT solver. Some of these options are listed below,
At solver boundary:
If there are no boundary conditions defined at a solver boundary then that boundary is considered to be insulating by default.
Alternatively, you can also define a thermal boundary condition at a solver boundary and set the model to “insulating”.
At solid - solver boundary intersection
- If you have multiple (layers of) solids at a solver boundary and want to define an insulating boundary condition for a certain layer, you can do that by creating a thermal boundary condition that applies to the solid - solver boundary intersection and uses the “insulating” model as show below: