[magicalmarshmallow]

Hi,

I have an obscure conjugate heat transfer problem which I am solving using FLUENT.
What I have is a sandwich structure, whereby I have a Hot block of metal (Al) in contact with a gap filler in contact with a Cu pipe, which has water flowing within it.
Al
Gap-filler
Cu
Water

I have computed this without a wall thickness for the "Al-gap-filler" and "Al-gap-filler-shadow" and "gap-filler-Cu" and "gap-filler-Cu-shadow". This gave results much further than the experimental. Hence I defined a "Wall Thickness of 0.005 m.

What I want to know is how to convert this to an interfacial resistance of W/m^2 K, similar to the input parameter in CFX. Has anyone any ideas about this or if it can be done?

Cheers

M