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Calculating thermal resistance
Posted Jun 25, 2017, 4:48 p.m. EDT 0 Replies
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I'm relatively new to COMSOL and am having trouble finding the right expression to calculate the thermal resistance of my model during the post processing of my results.
The model (made in v5.2), attached, uses physics for Joule heating and consists of a stack of various materials. A voltage potential is applied at the top of the stack and the bottom is grounded. The model runs fine and the voltage and temperature profiles check out. Now I just want to be able to find the total thermal resistance of this stack in units of K/W (conductance would work too). I tried using thermal conductivity expressions in derived values but the results are completely unreasonable.
Can anyone help?
Thanks,
Joe
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Hello Joe Liang
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