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Forum: OpenFOAM Running, Solving & CFD

October 18, 2013, 03:38

Replies: 51

why pisoFoam take such a long time to converge?

Views: 6,181

Posted By haakon

You are correct. pisoFoam does not obey the...

You are correct. pisoFoam does not obey the residual controls. This is because the solution is time-accurate, i.e. every step is a valid solution of the transient problem. Hence, each step is solved...

Forum: OpenFOAM Running, Solving & CFD

October 15, 2013, 05:16

Replies: 51

why pisoFoam take such a long time to converge?

Views: 6,181

Posted By haakon

I guess that probably is just the "upwind"...

I guess that probably is just the "upwind" scheme, but I have never used it, as it produces just crap.

Why are you using zero non-orthogonal correctors? Have you tried increasing this value? Why...

Forum: OpenFOAM Running, Solving & CFD

October 15, 2013, 05:03

Replies: 51

why pisoFoam take such a long time to converge?

Views: 6,181

Posted By haakon

You have specified Euler to be used as time...

You have specified Euler to be used as time integrator, hence your simulation is transient. Period.

Anyways, as others have mentioned, pisoFoam will not obey the residual limits you have...

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