About fix wall temperature in wall boundary
Hi! I am working on a heat exchanger and trying to use a fixed wall temperature in wall boundry condition. My question is that the wall temperature that I have to input is a reference temperature or absolute temp. Meaning that do I have to input a temperature difference between a real value and a temperature that I gave for reference or just the value of temperature itself. I know that in pressure boundary condition you have to give a difference value to a reference pressure that you already gave. I saw the manual and I think that I have to give the real value but I just want to make sure! Thank you in advance.
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