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Forum: OpenFOAM Running, Solving & CFD

January 12, 2015, 11:03

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

In fact it was here:...

In fact it was here: http://www.openfoam.org/mantisbt/view.php?id=1410#c3246

Forum: OpenFOAM Running, Solving & CFD

January 12, 2015, 10:19

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, If you take a look at forceCoeffs.C: ...

Hi,

If you take a look at forceCoeffs.C:

// lift, drag and moment
coeffs[0] = (totForce & liftDir_)/(Aref_*pDyn);
coeffs[1] = (totForce & dragDir_)/(Aref_*pDyn);
...

Forum: OpenFOAM Running, Solving & CFD

January 10, 2015, 13:56

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, 1. Increase number of non-orthogonal...

Hi,

1. Increase number of non-orthogonal correctors. nNonOrthogonalCorrectors in SIMPLE dictionary. Set it to 3-4.

2. If solution still diverges. Relax more. Set relaxation factor for velocity...

Forum: OpenFOAM Running, Solving & CFD

January 10, 2015, 12:59

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, "relTol 0" in pressure solver is too...

Hi,

"relTol 0" in pressure solver is too strict. Let it be 1e-2 or 0.1. Don't know what values of tolerance and relTol you have for velocity.

As you can see from residuals, solution is far from...

Forum: OpenFOAM Running, Solving & CFD

January 10, 2015, 08:30

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, Well, guess bounded was not implemented...

Hi,

Well, guess bounded was not implemented in 2.1.1.

According to the output, this time FPE happens in pEqn.H, so you've got two options:

1. Change solver for pressure to PCG.

2....

Forum: OpenFOAM Running, Solving & CFD

January 9, 2015, 08:23

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, I was not able to find errors in the...

Hi,

I was not able to find errors in the settings, my suggestions will be quite generic:

1. Change smoothSolver to PBiCG. Dictionary for the solver you can find in...

Forum: OpenFOAM Running, Solving & CFD

January 9, 2015, 05:06

Replies: 17

Fluent works... OF not?

Views: 1,277

Posted By alexeym

Hi, As the solver crashes during the first...

Hi,

As the solver crashes during the first iteration, it can be mesh, schemes, ICs and BCs. So please post:

1. checkMesh output
2. fvSchemes file
3. 0 folder

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