[clementbrun]

Hi, I have a simple question, I think.

I have two solids in contact, for the question we call 1 the solid above solid 2. I'm working in 3D (on fluent). On the upper face of solid 1, there is a convection condition. At the interface of the two solids, a zone named "coupled" by default in the BCs. And on the underside of solid 2, a "heat flux" condition. I obtain the results shown in image 1.

My question is as follows: I now want to simulate a constant flux on solid 2, at the interface. When I enter the BC, heat flux, I get poor results (see image 2). I get the impression that conduction is not taking place.

Do you know how to solve this problem? Thank in advance