[rum131]

Hi All,

I have tried to look through these forums with no avail.

My problem is this:

Flat plate with a thickness has a pipe running inside. On top of the flat plate there is a heat source (box with constant heat flux) and the pipe has a coolant running through it. I want to investigate the heat transfer from the heat source>plate>cooling pipes. All these components are contained in a larger box. The gas in this large box is N2. The coolant is to be water-liquid.
When I run the coolant as water my simulation instantly diverages, however running both ambient and coolant fluid as N2 it works.....any ideas?