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Forum: OpenFOAM Running, Solving & CFD

May 4, 2008, 17:28

Replies: 10

3 discretisation solving questions

Views: 1,726

Posted By dbxmcf

Hi, I think the U field is int

Hi, I think the U field is interpolated to the control volume surface while calculating the phi. Since your rho is a constant, the phi is using the interpolated surface U times the surface area, that...

Forum: OpenFOAM Running, Solving & CFD

May 4, 2008, 11:26

Replies: 10

3 discretisation solving questions

Views: 1,726

Posted By dbxmcf

Hi, I don't know the exactly p

Hi, I don't know the exactly problem you have, my suggestion might be wrong, but I just think something "might" affect your solution. Then continuity equation is:

ddt(rho)+div(rho, U)=0

If...

Forum: OpenFOAM Running, Solving & CFD

May 3, 2008, 20:30

Replies: 10

3 discretisation solving questions

Views: 1,726

Posted By dbxmcf

Phi does not necessarily to be

Phi does not necessarily to be equal, however, it should obey the continuity after the 2 PISO correction steps, which is the key issue of the Pressure-Velocity correction procedure.

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