Heat transfer boundary condition

UsamaQ · May 17, 2020, 11:41

Hello.

I am currently working on compressor simulation and i have a fluid domain of one sector only.

For heat transfer modelling, I see external heat transfer coefficient and outside temperature.

So do I have to use heat transfer coefficient of external medium (outside of fluid domain i.e air or some other fluid) ? I checked the modelling guide and it seems its external heat transfer coefficient outside the wall.

Gert-Jan · May 17, 2020, 17:27

Yes, you have to use heat transfer coefficient of external medium. And "far field" external temperature.

May 17, 2020, 11:41	Heat transfer boundary condition	#1
UsamaQ Member Join Date: Mar 2020 Posts: 33 Rep Power: 6	Hello. I am currently working on compressor simulation and i have a fluid domain of one sector only. For heat transfer modelling, I see external heat transfer coefficient and outside temperature. So do I have to use heat transfer coefficient of external medium (outside of fluid domain i.e air or some other fluid) ? I checked the modelling guide and it seems its external heat transfer coefficient outside the wall.

May 17, 2020, 17:27		#2
Gert-Jan Senior Member Gert-Jan Join Date: Oct 2012 Location: Europe Posts: 1,832 Rep Power: 27	Yes, you have to use heat transfer coefficient of external medium. And "far field" external temperature. UsamaQ likes this.

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