CFD Online Discussion Forums

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-   OpenFOAM Running, Solving & CFD (http://www.cfd-online.com/Forums/openfoam-solving/)
-   -   Pressure Computation for incompressible cases (http://www.cfd-online.com/Forums/openfoam-solving/59571-pressure-computation-incompressible-cases.html)

tutlhino July 13, 2007 03:53

Hello all, does anyone of you
 
Hello all,
does anyone of you know how the poisson equation for the pressure is solved internally for incompressible cases, because a comparison of the residuals of p with the residuals of cfx show big differences. In cfx p converges much faster than the velocity, whereas p in openfoam converges much slower than the velocity, although the booundary conditions are the same.

Cheers
Florian

rolando July 13, 2007 11:51

Are you calculating a transien
 
Are you calculating a transient or a steady state case?

Rolando


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