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Forced convection and CHT : can we disable pressure and velocity solvers ? |
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April 4, 2012, 09:09 |
Forced convection and CHT : can we disable pressure and velocity solvers ?
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#1 |
New Member
Join Date: Aug 2011
Location: Paris
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Hi everybody,
I would like to simulate a Conjugate Heat Transfer problem where the fluid properties (density and viscosity) are independent of temperature. It is a forced convection case. Suppose I already get the pressure and velocity fields through a steady state simulation in the fluid region. The question is: can I run a CHT simulation (with time varying T boundary conditions) where p and U are initialized by the steady state solution and only energy equations are solved (in the fluid and solid regions with heat transfer). I can do so by setting the target residue of the pressure and velocity equations to 1. Is this correct ? This proceedure could save a lot of CPU time Thank u for your help. M3hdi |
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April 5, 2012, 09:27 |
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#2 |
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..the underlying hypothesis would be that the temperature field does not change the pressure and velocity solutions. Is this correct in a physical point of view ? (for incompressible fluid with constant density and viscosity)
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May 31, 2012, 04:42 |
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#3 |
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... none ?
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May 31, 2012, 08:04 |
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#4 |
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Joern Beilke
Join Date: Mar 2009
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That's a usual way to deal with that problem. So try it and look if you get reasonable results.
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May 31, 2012, 08:57 |
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#5 |
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Thank you for the answer !
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