Forced convection and CHT : can we disable pressure and velocity solvers ?
 

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

..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)

:confused:

... none ?

That's a usual way to deal with that problem. So try it and look if you get reasonable results.

Thank you for the answer !

:)