Hello,

I am trying just a very simple heat exchanger. Assume two flows with different temperatures, each in a duct separated with a wall between them. What type of BC shall I define the wall, separating the flows? I just defined it as WALL, and also when imported the file in FLUENT, it generated its shadow, then I coupled them.

Thank you

Actually it seems that the solver does not solve anything for one of those zones.

Any luck? I am trying to simulate a finned evaporator coil. I'm using the wall temperature condition, but find the cooling is not as much as the measured value...Any further thoughts?

No, I didnt work on it much. I initialized all the domains then patched a temp. and vel. to another zone. but it seemed that my solver is just solving one zone, not 2 zones.