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Forum: OpenFOAM Running, Solving & CFD January 6, 2011, 04:11
Replies: 10
Views: 3,369
Posted By ngj
B.T.W: The solution of the eigenvalue problem...

B.T.W: The solution of the eigenvalue problem using the routine in 1.5-dev is the source of the problem, as switching to the previous version, which also floats around in 1.5.x remove the problem.
...
Forum: OpenFOAM Running, Solving & CFD January 6, 2011, 04:09
Replies: 10
Views: 3,369
Posted By ngj
Hi Travis My experience was that it was...

Hi Travis

My experience was that it was related to the solution of the eigenvalue problem and it is only a problem for 2D-computations. Do you experience the same?

I have not had the problem...
Forum: OpenFOAM Running, Solving & CFD June 17, 2010, 14:09
Replies: 10
Views: 3,369
Posted By ngj
Hi To follow up on my problem, I have...

Hi

To follow up on my problem, I have isolated the problem. The eigenvalue problem solved using Matlab gives the eigenvalues:


4.39949893555e-32
1.99999999719868
...
Forum: OpenFOAM Running, Solving & CFD June 16, 2010, 16:25
Replies: 10
Views: 3,369
Posted By ngj
Hi The maximum skewness is 0.013, however...

Hi

The maximum skewness is 0.013, however the maximum high aspect ratio is 3100, which I know is quite high (boundary layer resolved). Could this cause the problem? Otherwise the mesh is...
Forum: OpenFOAM Running, Solving & CFD June 16, 2010, 15:37
Replies: 10
Views: 3,369
Posted By ngj
Hi Sandeep, Thanks for your reply. Yes, I am...

Hi Sandeep,

Thanks for your reply. Yes, I am using 1.5-dev.

I follow as far that the symmTensor is ill-behaved, however could you help me understand from what information the symmTensor is...
Forum: OpenFOAM Running, Solving & CFD June 16, 2010, 10:52
Replies: 10
Views: 3,369
Posted By ngj
Hi A small update on this. I have a case,...

Hi

A small update on this. I have a case, where the bed i moving, however it does not start moving until t = 10s. Everything runs smoothly until t = 10s, where the simulation aborts with the above...
Forum: OpenFOAM Running, Solving & CFD June 16, 2010, 08:37
Replies: 10
Views: 3,369
Posted By ngj
zero and complex eigenvalues in symmTensor

Hi all

When I am trying to run my case with


gradSchemes
{
default cellLimited fourth 1;
}
in stead of
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