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Which interface choose for fluid flow with heat transfer
Posted 2013年8月5日 GMT-4 11:05 Fluid & Heat, Heat Transfer & Phase Change 5 Replies
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I would like to ask for an advice.
I wish to solve the following problem: I have a plate of a solid material with low thermal conductivity. There is a pipe with cold water inside the plate. The water flows throuth the pipe with a fixed rate and goes outside. I need to simulate the temperature field in this system.
I'm not sure which interface I should use: "Conjugate Heat Transfer" or "HT -> HT in fluids".
Thanks!
With best regars,
Irina
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You can solve your problem with ether “Conjugate Heat Transfer” or “Heat Transfer in Fluids”. There are number of examples of this type of problem in the Model Library (Heat Transfer Module>Tutorial Models, Forced and Natural Convection, for example).
Generally, solver setting in Conjugate Heat Transfer is more robust and stable for convective-dominant problems.
Regards,
Sergei
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Thank you very much for your reply.
I would like to ask: is there a need to use the "Non-Isothermal Pipe Flow" module for such purposes or I can use the standard HT and CFD modules?
Best wishes,
Irina
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Yes, you can use standard HT and CFD interfaces to model this type of problem. You would need manually couple energy and momentum balance equations, although this coupling is quite straightforward.
Non-Isothermal Pipe Flow is a simplification: pipe is treated as 1D system and experimental correlations are used to model flow and heat transfer along the pipe length (you wouldn’t get cross-sectional distributions for the flow and temperature). This interface allows to model huge pipe systems but accuracy is somewhat sacrificed.
Regards,
Sergei
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my model is solid with heat flux on the upper face and fluid moving under lower face , I used Conjugate heat transfer
,but the result show that there are no heat transfer between solid and liquid!!
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