Modeling Perfect Contact Heat Transfer

awe901

Hi guys,

Just wanted to ask a quick question (more to verify). To model perfect contact between two materials in a steady state heat transfer simulation, would I set KCHTC = 0, located under PCONTHT, PCONT of Properties? Or will setting KCHTC = 0 just switch to Auto? I'm modeling microstructures and it's assumed that there is no thermal contact resistance at such a scale.

EDIT: Reviewing the Bulk Data for KCHTC, it appears that the higher the value, the better the conduction between two surfaces. How high can I reasonably set this before 'weird' things start happening? Or is there some other way to set this?