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Old   April 28, 2010, 04:08
Default GGI + postCalc
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Antoine Devesa
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Dear Foam users and developers,

i just wanted to have your opinion on what i consider as a possible bug concerning postprocessing for a GGI simulation:

if i compute any quantity using postcalc (like Lambda2 or Q) for more than one time step, then i get unphysical values at the GGI frontiers in the visualization of those quantities.

I'm trying now with an #include "createMesh.H" before each call of the calc function in postCalc.H, and it seems to solve the problem. Is this the correct way to do that?
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Old   July 13, 2010, 11:40
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Pavan
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I get large discontinuities but not non-physical values...I only ever calculated vorticity though...
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Old   July 13, 2010, 12:26
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Martin Beaudoin
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Hello,

Can you reproduce the problem with either one of the actual OpenFOAM 1.5-dev tutorials, or using one of the Turbomachinery test cases suite?

Contributing a new test case is ok too. See here:
http://www.extend-project.de/project...m-test-harness

That way, we could add a new GGI specific test to the test harness.
http://openfoam-extend.sourceforge.net/CDash/index.php

Martin

Quote:
Originally Posted by rieuk View Post
I get large discontinuities but not non-physical values...I only ever calculated vorticity though...
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Old   July 13, 2010, 14:36
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Holger Marschall
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Hi Antoine and Pavan,

to avoid confusion for all OpenFOAMŽers allow me a bit housekeeping...

AFAIK, GGI has been developed within the OpenFOAM-Extend Project for OpenFOAMŽ-dev. Details can be found in the Presentation at the Workshop in Montreal or the Presentation at the OSCIC - both given by Martin and Hrvoje in 2008.

As this forum section concerns the core of OpenFOAMŽ as it is released by OpenCFDŽ Limited and as OpenFOAMŽ-Extend (among other features and functionalities) provides a own bug tracker MantisBT, all bug reports concerning OpenFOAMŽ-dev (soon OpenFOAMŽ-ext) specific features might be better placed here:

http://www.extend-project.de/project...nd-bug-tracker

best,
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Old   July 14, 2010, 05:01
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Antoine Devesa
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Hello all,

@Holger: since there is no specific forum until now for openfoam-extend (the forum on the openfoam-extend website points to this cfd-online forum), where can we then discuss about things, before being sure we're dealing with bugs?
Additionally, at the time i started this thread, there was neither the brandnew openfoam-extend website, nor the Mantis bug tracking... Shall i now report that problem there?
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Old   July 14, 2010, 06:39
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Hi,

thanks for the feedback.

@ discussions of OF-Extend features (or problems related to them): Basically there are two possibilities IMO (and it was just meant to keep things sorted). You could either start a discussion with the special interest group closest to your problem (http://www.extend-project.de/user-gr...turbomachinery) or start a new thread within this forum.

@ time of thread start: Sorry, didn't see that.

P.S.: Please write me a mail / message or start a discussion in a more common forum part to talk further... I really think, this is the wrong place.

best,
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