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Finding velocity temperature etc at a particular pt in space |
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#1 |
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srinath
Join Date: Mar 2009
Location: Champaign, USA
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Hi
Suppose i have finished a foam run, and am interested in values at a few spatial locations, how would i extract these from the output? Thanks Srinath |
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#2 |
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Bernhard Gschaider
Join Date: Mar 2009
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During the simuation you can do that using the probes-functionObject (have a look at $FOAM_TUTORIALS/oodles/pitzDaily/system/controlDict for an example).
I have never tried this, but I think that you can use the same mechanism to do it after the simulation. Just add the entries to the controlDict and run a postprocessing-utility that loads the fields you are looking for into memory (Mach or something like that) Bernhard
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#3 |
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srinath
Join Date: Mar 2009
Location: Champaign, USA
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Thanks Bernhard
I added the lines to the control dict and i get the runtime information. I would ideally like to extract information at particular spatial co-ordinates even after the run is completed. I am not very familiar with manipulating IO objects. Could someone tell me how i should go about it? Thanks Srinath |
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#4 |
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Niels Gjoel Jacobsen
Join Date: Mar 2009
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Hi Srinath
There is a tool which you might would take a look at. It is called 'sample' and lives in ~/OpenFOAM/OpenFOAM-1.4.1/applications/utilities/postProcessing/miscellaneous/sa mple In this folder there is also an example of a sampleDict. Using this tool you can extract points along a line. I do not know if you can extract in specific points, but a line with two points is only a little bit do much work ![]() / Niels
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#5 |
Member
srinath
Join Date: Mar 2009
Location: Champaign, USA
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Thanks Niels
I copy the sampleDict into the case/system directory And it works perfectly when i issue the command sample . cavity Srinath |
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#6 |
New Member
Martin Romagnoli
Join Date: Mar 2009
Location: Rosario, Santa Fe, Argentina
Posts: 22
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Hi Users,
Have you used probes function in multiphase flow solvers (rasInterFoam or interFoam)? I could obtain the probe/0/ files but there is a mistake. The values are not written in the correct time step. I tried probes function with other solvers (icoFoam, oodles, turbFoam). In this cases probes function works fine. I have not found the reason for this behaviour. Any clue? Thank you in advance. Martin. |
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