Dear Comsol users, I considered a Phatovoltaic Thermal(PV/T) heat transfer in solid and fluid physics. During the heat flux boundary condition I could not select the inner boundaries. i.e. from 9 domain consisting 46 boundaries attached with each other, I could not select the top surface of domain 5. My question is how can I understand the number of top surface of domain 5? Your cordial response is appreciated in advance.
That BC applies for outer surfaces only, for the numbering of the domain it is sufficient to go on the physics in the model builder and all the different domain are shown.
Regards
LC
The BC you used is for outer surface conditions only, but you can always overwrite them if you have different initial conditions.
COMSOL will not let you select boundaries for which the boundary condition does not make sense. For interior boundaries you sometimes have Interior BCs available, but it sounds like you are trying to do something that violates the physics.
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