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-   -   buoyantBoussinesqSimpleFoam no air speed or pressure (https://www.cfd-online.com/Forums/openfoam-solving/117690-buoyantboussinesqsimplefoam-no-air-speed-pressure.html)

mihaipruna May 13, 2013 16:56
buoyantBoussinesqSimpleFoam no air speed or pressure
 
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That is, minuscule values. I have a tube with a total pressure defined at one end and a heat flux. Question is, am I leaving some reference density out?
Namely, this rhok, found in the boundary/initial conditions for p_rgh:

VOL1FACE3
{
type buoyantPressure;
rho rhok;
value uniform 0;
}

it's not defined anywhere else in my case.

Tushar@cfd May 16, 2013 01:44
Quote:
Originally Posted by mihaipruna (Post 427271)
That is, minuscule values. I have a tube with a total pressure defined at one end and a heat flux. Question is, am I leaving some reference density out?
Namely, this rhok, found in the boundary/initial conditions for p_rgh:

VOL1FACE3
{
type buoyantPressure;
rho rhok;
value uniform 0;
}

it's not defined anywhere else in my case.
Is your solution converged??

mihaipruna May 16, 2013 09:40
hi Tushar, I figured out what the problem was, I had the BCs for p and p_rgh switched.


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