Forum: OpenFOAM Running, Solving & CFD
January 31, 2016, 06:46
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Replies: 91
Views: 56,990
Quick answer @Nasir: The crash occurred in the...
Quick answer @Nasir: The crash occurred in the file "src/thermophysicalModels/specie/equationOfState/perfectGas/perfectGasI.H", in this piece of code:
template<class Specie>
inline Foam::scalar...
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Forum: OpenFOAM Running, Solving & CFD
June 28, 2015, 16:36
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Replies: 91
Views: 56,990
Quick answer: You need to revise the boundary...
Quick answer: You need to revise the boundary conditions you have defined. As explained before in this thread, the error is due to a division by zero... which means that you have defined one or more...
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Forum: OpenFOAM Running, Solving & CFD
February 16, 2014, 09:42
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
February 15, 2014, 18:14
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
February 15, 2014, 17:55
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
February 15, 2014, 16:50
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Replies: 91
Views: 56,990
Hi guilha,
It could be a problem in the...
Hi guilha,
It could be a problem in the installation of OpenFOAM on one of the machines. Try running checkMesh in parallel, the same way you run rhoCentralFoam.
And a few questions (I don't...
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Forum: OpenFOAM Running, Solving & CFD
October 14, 2013, 17:02
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Replies: 91
Views: 56,990
Hi guilha,
The rule of thumb is to only...
Hi guilha,
The rule of thumb is to only allow a maximum Courant number of 0.5; but if still diverges, try lower values.
Higher values should only be used if you know what you are doing ;)
...
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Forum: OpenFOAM Running, Solving & CFD
October 6, 2013, 11:58
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Replies: 91
Views: 56,990
Hi guilha,
Have you managed to the tests...
Hi guilha,
Have you managed to the tests I suggested?
OK, special caution is necessary for cyclic patches, as explained here: Cyclic patches and parallel postprocessing problems...
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Forum: OpenFOAM Running, Solving & CFD
September 27, 2013, 18:35
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Replies: 91
Views: 56,990
Greetings guilha,
To assess if the problem...
Greetings guilha,
To assess if the problem is related the communication between the two machines, try running with 16 cores on each machine, therefore having 32 cores in total. This way you can...
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Forum: OpenFOAM Running, Solving & CFD
September 1, 2013, 07:46
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Replies: 91
Views: 56,990
Hi Sonu,
First, please follow the...
Hi Sonu,
First, please follow the instructions on my second signature link, for when you need to post output or code, namely: How to post code using ...
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Forum: OpenFOAM Running, Solving & CFD
August 31, 2013, 15:05
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Replies: 91
Views: 56,990
Hi Sonu,
From what I can see, the pressure...
Hi Sonu,
From what I can see, the pressure in the outlet should not be defined as being of type "calculated". Because that way you have an undefined boundary on the outlet, since you say that the...
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Forum: OpenFOAM Running, Solving & CFD
August 27, 2013, 17:37
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
June 1, 2012, 09:50
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
May 31, 2012, 14:32
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Replies: 91
Views: 56,990
Greetings Edward,
OK, if you've read about...
Greetings Edward,
OK, if you've read about the Courant number, then you should know that you should check the smallest cell size you've got:
Run:checkMesh
Search for the "Minimum volume"...
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Forum: OpenFOAM Running, Solving & CFD
April 11, 2012, 04:38
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Replies: 91
Views: 56,990
Hi ebah6,
Mmm, if it's not the mesh, then...
Hi ebah6,
Mmm, if it's not the mesh, then you've got to start tuning the "fvSchemes" file and possibly the "fvSolution" one as well. Unfortunately I don't know much how to configure them properly...
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Forum: OpenFOAM Running, Solving & CFD
April 5, 2012, 09:03
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Replies: 91
Views: 56,990
Hi ebah6,
Mmm... I'm not an expert on this...
Hi ebah6,
Mmm... I'm not an expert on this subject, but this is what I can see that might be the source of the problems:
The cylindrical paddles are very thin, which usually leads to the...
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Forum: OpenFOAM Running, Solving & CFD
April 3, 2012, 05:45
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Replies: 91
Views: 56,990
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Forum: OpenFOAM Running, Solving & CFD
February 18, 2012, 05:56
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Replies: 91
Views: 56,990
Greetings ebah6,
You've got a whole other...
Greetings ebah6,
You've got a whole other set of problems on your case. In bold and underlined are the major indicators of what might be wrong:
Courant number seems just fine, or at least...
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Forum: OpenFOAM Running, Solving & CFD
June 18, 2011, 16:53
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Replies: 91
Views: 56,990
Greetings Almir,
At the risk of sending you...
Greetings Almir,
At the risk of sending you off in the wrong direction, you can try this answer: My program stops with an output that starts with #0 Foam::error:: PrintStack(Foam::Ostream&)...
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