heat transfer boundary condition??

smshin · February 15, 2019, 04:44

In the heat exchanger, the same boundary condition is applied to the low temperature channel and the lower high temperature channel. However, as shown in the figure, there is a phenomenon in which heat is transferred to the solid only in the middle channel and heat is not transferred in the low temperature channel. I do not know what the problem is.
Is it a mesh problem?

ghorrocks · February 15, 2019, 17:10

I do not understand what you are doing. Please describe it more and post your output file.

Opaque · February 15, 2019, 18:53

Check your boundary conditions at the interfaces between the solid and the low temperature channels

February 15, 2019, 17:10		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,934 Rep Power: 145	I do not understand what you are doing. Please describe it more and post your output file. __________________ Note: I do not answer CFD questions by PM. CFD questions should be posted on the forum.

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February 15, 2019, 18:53		#3
Opaque Senior Member Join Date: Jun 2009 Posts: 1,898 Rep Power: 33	Check your boundary conditions at the interfaces between the solid and the low temperature channels