|June 22, 2010, 09:33||
calculate difference between runs
Join Date: Jun 2010
Posts: 5Rep Power: 8
I am sure it is very simple, but...
I am running the same case with different settings in fvSchemes and fvSolution, once in caseDirA and once in caseDirB. I would like to study how these settings affect the solution accuracy. How can I visualize the difference between the two runs in paraFoam?
I can open both the results from caseDirA and from caseDirB in paraFoam. But the Calculator filter works only on the selected dataset, not among two different datasets.
Does OpenFOAM come with utilities to write the difference in some variable T between two cases? Like foamCalc can do some vector algebra (on a single case)?
|August 16, 2010, 12:56||
Join Date: Dec 2009
Location: Hamburg, Germany
Posts: 19Rep Power: 8
it really seems to be a simple job to do, but I didn't found out the trick, either.
My solution was to write a scilab-script (almost similiar to MATLAB, but open-source) that takes the fielddata from both cases, calculates the difference and stores it in a new file. Then I copied the case-dir and replaced the fielddata with the calculated ones and launched paraview.
It really couldn't be more complicated!
So, if you meanwhile found the trick with the paraview-calculator, I'd be glad if you could post it here.
|January 12, 2015, 07:50||
Join Date: Mar 2013
Posts: 94Rep Power: 5
Hi to all,
did you manage to find the solution at the problem? I'm trying to do the same but I'm not able to do it...
|Thread||Thread Starter||Forum||Replies||Last Post|
|ATTENTION! Reliability problems in CFX 5.7||Joseph||CFX||14||April 20, 2010 15:45|
|the effect of upwind difference||hades||Main CFD Forum||8||March 15, 2009 00:43|
|mass difference with time?||Prakash||FLUENT||0||December 11, 2007 20:23|
|Difference between scaled residuals and...||Dieter||FLUENT||0||April 28, 2006 17:52|
|Fininte difference and Finite element Technique||Mahendra Singh Mehra||FLUENT||3||December 23, 2005 00:49|