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Forum: OpenFOAM Running, Solving & CFD

October 23, 2015, 04:15

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

The problem is he uses some fancy tool to feed...

The problem is he uses some fancy tool to feed openFoam instead of the linux files. That's why we can't see all the files.
I am interested in this, too, since I had the same problem in the link I...

Forum: OpenFOAM Running, Solving & CFD

October 23, 2015, 03:49

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

It's the last iteration of PIMPLE that runs...

It's the last iteration of PIMPLE that runs without under relaxation. I always thought the residuals jump to a higher value because of that. I always see that in my calculations with PIMPLE.
Alexey,...

Forum: OpenFOAM Running, Solving & CFD

October 23, 2015, 02:54

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

I actually don't see any major mistake. Maybe you...

I actually don't see any major mistake. Maybe you should lower the time step. PIMPLE isn't really made for steady state problems, but should normally converge anyway into the steady state solution....

Forum: OpenFOAM Running, Solving & CFD

October 21, 2015, 01:27

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

From the log file it looks like your linear...

From the log file it looks like your linear solver settings are just not tight enough. You see, they all "converge" in zero iterations, which means, that the initial residual is lower than the...

Forum: OpenFOAM Running, Solving & CFD

October 20, 2015, 09:08

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

And please run checkMesh and post the output.

And please run checkMesh and post the output.

Forum: OpenFOAM Running, Solving & CFD

October 20, 2015, 09:07

Replies: 18

PIMPLE pressure residual behaviour

Views: 5,174

Posted By RodriguezFatz

Ok! 1) The problem seems to be stationary, so...

Ok!
1) The problem seems to be stationary, so why do you use a time-dependent solver?
2) Can you post the last few iterations of your log file? Then, the fvSolution, fvSchemes and boundary settings...

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