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-   -   [OpenFOAM] Can Paraview create tables like in CFD-post (Ansys)? (https://www.cfd-online.com/Forums/paraview/179344-can-paraview-create-tables-like-cfd-post-ansys.html)

vasava October 28, 2016 05:02

Can Paraview create tables like in CFD-post (Ansys)?
 
In CFD-post you can make tables for post processing data e.g. maximum, average(volume and area), minimum values of variables across sections and boundaries. Here is an example.
http://www.cfx-berlin.de/fileadmin/_...4e3c393323.png
These tables can also be copies to excel for further post-processing and analysis.

Is it possible to make such tables with paraview?

vasava November 2, 2016 01:39

I have gone through almost entire help section for paraview and unfortunately it is not possible to make such tables in paraview. I would like to know if someone else thinks otherwise.

There is some respite though as filters (e.g. integral variable) and commands (e.g. patchAverage) can help calculate average of chosen quantities at chosen boundaries.

akidess November 2, 2016 02:22

How do you feel about generating the data with OpenFOAM's postprocessing tools instead of Paraview?

vasava November 2, 2016 02:25

Quote:

Originally Posted by akidess (Post 623763)
How do you feel about generating the data with OpenFOAM's postprocessing tools instead of Paraview?

Do you mean parafoam?

akidess November 2, 2016 02:34

No, that's still Paraview. I mean sample, probe, postProcess (functionObjects), swak, ...

vasava November 2, 2016 03:13

Quote:

Originally Posted by vasava (Post 623765)
Do you mean parafoam?

Thank you for your response. That was indeed a nonsense question.

Yes, I do use swak4Foam and probes for monitoring and post-processing. But most of the times it gets little manual processing each monitor files separately. For example this one case I have has 21 inlet-outlets and about 36 monitor files. It is tedious to process them manually.

I have made some octave programs to process the probe-files rapidly. It helps but I would still like to do same type of post-processing in paraview, if possible. Thats why I was looking for ways to generate CFD-post-like tables directly in paraview.

For now I am trying to learn ways to use paraview more efficiently. The idea was to make state files (that includes CFD-post-like tables) that work for identical/similar cases. This is to generate same results for multiple cases eliminating all the repetitive/manual work.

Right now I am reading about filters to get more help and see if there is workaround.

vasava November 2, 2016 03:20

By the way, do you have any experience with VTK?

akidess November 2, 2016 03:23

With python scripting, you may be able to get what you want in Paraview. But as far as the CLI tools go, why would you even consider postprocessing anything manually, especially for that number of files? Since the files are easily readable, automating your postprocessing with Python, Octave or whatever is fairly simple.

vasava November 2, 2016 03:43

You are right about postprocessing with Octave. I always use it extensively whenever I want to do quantitative analysis. Using Octave has made my life very simple.

Unfortunately I dont know anything about python scripting or any other programming language in that matter. The only thing I am good at is Matlab and I am using that knowledge for making Octave programs.

I used term 'manual' to compare my paraview skills with cfdpost. I think I am still quite far.

Thanks for your comments!!

vasava November 3, 2016 02:01

While we are on this topic, do you know if there is a way to append monitor files in openFoam? Every time I interrupt simulation, a new time-directory with new monitor files is generated.

Again, I deal with this with Octave program but it would be nice to have only one single datafile for each monitor.

I created a post in February but no one has responded. I guess it is impossible.


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