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tube heat ex-changer involving two fluids separated by thermal baffles

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Old   January 7, 2015, 00:05
Default tube heat ex-changer involving two fluids separated by thermal baffles
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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!

tube flow.png
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Old   January 12, 2015, 08:37
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The appropriate solver is chtMultiRegion(Simple)Foam. Simple for steady state calculations.

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Alex
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Old   January 12, 2015, 10:41
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thanks a lot. Just wonder if the thermalBaffle BC works well as the region interface. Any experience?
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Old   January 12, 2015, 10:52
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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.
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Old   January 12, 2015, 11:04
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Is there an incompressible counterpart BC available? I am dealing with water. Thanks.
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Old   January 31, 2015, 04:46
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Quick answer: "chtMultiRegion*Foam" solvers are for compressible flow, but they should work just fine with incompressible fluids.
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