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December 11, 2012, 14:35 |
Foam::error::printStack(Foam::Ostream&)
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#1 |
New Member
Warren Lamont
Join Date: Nov 2012
Posts: 5
Rep Power: 13 |
I am trying to run OF but I am getting an error after iteration 49. I created a mesh in Ansys mesher and exported to fluent (ascii mesh). I then used fluent3DMeshToFoam to create an OF mesh. I setup the case with appropriate BCs and calculated appropriate k and epsilon. After iteration 49 I get the following error:
Code:
#0 Foam::error::printStack(Foam::Ostream&) in "/opt/openfoam211/platforms/linux64GccDPOpt/lib/libOpenFOAM.so" Thanks, Last edited by wlamont; December 11, 2012 at 17:05. Reason: More details |
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December 11, 2012, 14:39 |
removed
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#2 |
New Member
Warren Lamont
Join Date: Nov 2012
Posts: 5
Rep Power: 13 |
removed.... thanks
Last edited by wlamont; December 11, 2012 at 15:35. |
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December 12, 2012, 06:40 |
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#3 |
Senior Member
Ehsan
Join Date: Oct 2012
Location: Iran
Posts: 2,208
Rep Power: 26 |
I have the same problem.how did you fix it?
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December 14, 2012, 09:18 |
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#4 |
New Member
Warren Lamont
Join Date: Nov 2012
Posts: 5
Rep Power: 13 |
I still haven't figured out what is wrong. I am still troubleshooting. Any thoughts?
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December 14, 2012, 09:29 |
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#5 |
Senior Member
Niels Gjoel Jacobsen
Join Date: Mar 2009
Location: Copenhagen, Denmark
Posts: 1,900
Rep Power: 37 |
Hi Warren,
Well, in the very first time step you have 1001 iterations on the pressure, which is typically the maximum value of iterations unless otherwise stated by the user. This results in a very large local mass conservation error (I never use steady state solvers, so have no idea if that is typically allowed) and secondly the values for epsilon, still in t = 41, is by far too large. I conclusion: I would suspect that your boundary conditions are not sane or you are using an initial internal field, which is incorrect. Another advice typically given on this forum is to use "upwind" for all numerical schemes. This should stabilise the simulation if the divergence is related to the choice of scheme. Kind regards, Niels |
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