[kuria]

Hey Foamers


I am wondering if it is possible to run a python file by modifying OpenFOAM solver source code (like say simpleFOAM).

Lets just say the python file forces printing out a random statement during running of the solver.



My understanding of PyFOAM is that it is a wrapper around the C++ OpenFOAM source code so it doesn't allow running python script in the solver.


Thank you in advance for your comments and thoughts on this!

[Yann]

Hello Kuria,

Why not using the systemCall function object for this ? This function allow to execute shell commands during a run.

    Executes system calls, entered in the form of a string lists.
    Calls can be made at the following points in the calculation:
    - every time step
    - every output time
    - end of the calculation

I usually use it to execute gnuplot scripts (e.g. to monitor residuals) but running a python script should not be a problem.

Cheers,
Yann

[Carlo_P]

Hey Yann,


nice functionObject..
Does it works both with Esi and org foam version?


For Kuris:
you can simple write "python pythonfile.py > pythonfile.log" in that system call.

[Yann]

Originally Posted by Carlo_P

Hey Yann,


nice functionObject..
Does it works both with Esi and org foam version?

Hi Carlo!

Yes this is quite an old function object and it exists in both branches!

I think it's an overlooked but powerful way to automatize tasks during a run, whether it is about running some shell commands or using other tools such as python or gnuplot.

Cheers,
Yann