I’m running some CFD tests (here a PCB heat sink cooling in CHT, basically a remake of the “Heat sink-Electronics cooling using CHT” tutorial).
I’m hitting the wall while trying to set an interface between solid and fluid with face sets, with the following message:
“Error: Fluid interface should have exactly one unique pair of master and slave entities.”
I’ve checked that the sets weren’t used elsewhere, tried to swap sets, change for single faces, … without success.
I guess that the reason is trivial, but can’t point it out!
Any hint would be welcome!