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-   -   tube heat ex-changer involving two fluids separated by thermal baffles (https://www.cfd-online.com/Forums/openfoam-solving/146775-tube-heat-ex-changer-involving-two-fluids-separated-thermal-baffles.html)

Ya_Squall2010 January 6, 2015 23:05
tube heat ex-changer involving two fluids separated by thermal baffles
 
1 Attachment(s)
Hi everyone,

I am looking for a solver able to handle a tube heat ex-changer involving two fluids separated by thermal baffles (there's no free surface). The schematic is shown in the attached figure. Can anyone please give me some hints on this. Thanks a lot!

Attachment 36373

zfaraday January 12, 2015 07:37
The appropriate solver is chtMultiRegion(Simple)Foam. Simple for steady state calculations.

Regards,

Alex

Ya_Squall2010 January 12, 2015 09:41
thanks a lot. Just wonder if the thermalBaffle BC works well as the region interface. Any experience?

zfaraday January 12, 2015 09:52
You have to use compressible::turbulentTemperatureCoupledBaffleMix ed as a BC in order to couple T in both sides. You can also define your baffle's properties (thermal conductivity and thickness) within the BC specification in the 0 folder.

Ya_Squall2010 January 12, 2015 10:04
Is there an incompressible counterpart BC available? I am dealing with water. Thanks.

wyldckat January 31, 2015 03:46
Quick answer: "chtMultiRegion*Foam" solvers are for compressible flow, but they should work just fine with incompressible fluids.


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