Thankyou Sir,
Can you guide me on about checking energy balance as well. As you can see in below image,
if I choose all boundaries then net heat transfer rate = -354W but if I skip either of Vapordomain_tubewall OR Tubewall:1 then the net heat transfer rate = 3W.
The confusion is, I have inputted constant temperature at tubewall:1 BC to accomodate water side heat flux and choose vapordomain_tubewall(interface) as Coupled.
If we see the net heat transfer rate then both have nearly same -351W of heat transfer rate.
Should I skip one boundary say tubewall:1? as we can consider both as same thing? I mean, the whole energy absorbed by interface will go to tubewall:1?
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