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Search: Posts Made By: wyldckat
Forum: OpenFOAM Running, Solving & CFD January 31, 2016, 06:46
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD June 28, 2015, 16:36
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD February 16, 2014, 09:42
Replies: 91
Views: 56,990
Posted By wyldckat
Hi guilha, Are the probes lost because you...

Hi guilha,

Are the probes lost because you continued the simulation or even if you restart from t=0s?

Best regards,
Bruno
Forum: OpenFOAM Running, Solving & CFD February 15, 2014, 18:14
Replies: 91
Views: 56,990
Posted By wyldckat
I suspect that you're getting an error similar to...

I suspect that you're getting an error similar to the one explained here: http://www.openfoam.org/mantisbt/view.php?id=241

Another possibility is that there aren't enough cells near the front and...
Forum: OpenFOAM Running, Solving & CFD February 15, 2014, 17:55
Replies: 91
Views: 56,990
Posted By wyldckat
How exactly is "decomposeParDict" configured? ...

How exactly is "decomposeParDict" configured?
Is the case 2D or 3D?
Forum: OpenFOAM Running, Solving & CFD February 15, 2014, 16:50
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD October 14, 2013, 17:02
Replies: 91
Views: 56,990
Posted By wyldckat
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 ;)

...
Forum: OpenFOAM Running, Solving & CFD October 6, 2013, 11:58
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD September 27, 2013, 18:35
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD September 1, 2013, 07:46
Replies: 91
Views: 56,990
Posted By wyldckat
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 ...
Forum: OpenFOAM Running, Solving & CFD August 31, 2013, 15:05
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD August 27, 2013, 17:37
Replies: 91
Views: 56,990
Posted By wyldckat
Greetings yash.aesi, Not much information to...

Greetings yash.aesi,

Not much information to work with. But from the output you've showed:

In bold are the things to take into account:


The pressure field/equation is not being solved...
Forum: OpenFOAM Running, Solving & CFD June 1, 2012, 09:50
Replies: 91
Views: 56,990
Posted By wyldckat
Hi Edward, Mmm, you forgot to attach your...

Hi Edward,

Mmm, you forgot to attach your checkMesh log. ;)

Anyway, if you want the steady state solution with interFoam, then probably this is what you want:...
Forum: OpenFOAM Running, Solving & CFD May 31, 2012, 14:32
Replies: 91
Views: 56,990
Posted By wyldckat
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"...
Forum: OpenFOAM Running, Solving & CFD April 11, 2012, 04:38
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD April 5, 2012, 09:03
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD April 3, 2012, 05:45
Replies: 91
Views: 56,990
Posted By wyldckat
Greetings to all! To add to samiam1000's...

Greetings to all!

To add to samiam1000's answer:


Read once again the "lid-driven cavity flow" tutorial from the user guide, sub-section 2.1.1.4, titled "Control":...
Forum: OpenFOAM Running, Solving & CFD February 18, 2012, 05:56
Replies: 91
Views: 56,990
Posted By wyldckat
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...
Forum: OpenFOAM Running, Solving & CFD June 18, 2011, 16:53
Replies: 91
Views: 56,990
Posted By wyldckat
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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