modeling heat transfer betwwen fluid and solid
 

Hi guys, I like to model a simple forced convection to evaluate cfx, i am a new user of cfx

I have modeled a rectangular plate surronded by block of air. I have defined one solid domain and one solid aluminum.

I have defined air as atunel with inletflow and outletflow, and alos defined heat load per volume for the solid domain .

how do i model the interaction between the two domains