[lbrumf2]

I have run a few 2d, steady state, single phase heat transfer models. No problem.

Basically, natural convection of water over a heated isothermal flat plate (I'm building up to more complex simulations). I want to repeat the simulation with a modified surface (my research). I wanted to apply an isothermal condition at the bottom of the structures and see how the temperature varies through it. So now I would apply an isothermal condition at the base of the structures.

The problem is I don't know how to have the two different materials (solid and fluid) in the model.