[Ibrahim_I]

Hello, I am doing a cht case of a sealed trombe wall. I have a coupled boundary between air and a solid, but I also need a heat flux w/m2 applied on the solid boundary (to simulate solar flux). Is there a simple way to do this? Currently I've split the solid into a really thin part and a larger part, and am applying a w/m3 to the thin part to emulate a w/m2 on that boundary whilst also keeping it coupled.

Kind regards