Run python scrpit as functionObject

agustinvo · July 3, 2017, 08:07

Good afternoon

I would like to know if it is possible to add a python script inside a functionObject, so I can postprocess some files that I have created in a previous functionObject. I am also wondering I could use pyFOAM for it. What I am doing is

1. I extract some slices with the OpenFOAM surfaces (done already)
2. With a python script, I perform an average on each point of the slice (done with python, and what I want to add to my controlDict)

Maybe with pyFOAM i could access to the field data, and then work on it directly.

What do you think? Is is possible?
Thank you in advance,
Agustín

alexeym · July 3, 2017, 12:21

Hi,

fieldValues function object seems to do what you want without Python (see $FOAM_SRC/functionObjects/field/fieldValues/controlDict for example of settings).

There is also systemCall function object, which can execute arbitrary shell code, so you can execute your Python script and post-process extracted slices.

July 3, 2017, 08:07	Run python scrpit as functionObject	#1
agustinvo Senior Member Agustín Villa Join Date: Apr 2013 Location: Alcorcón Posts: 313 Rep Power: 15	Good afternoon I would like to know if it is possible to add a python script inside a functionObject, so I can postprocess some files that I have created in a previous functionObject. I am also wondering I could use pyFOAM for it. What I am doing is 1. I extract some slices with the OpenFOAM surfaces (done already) 2. With a python script, I perform an average on each point of the slice (done with python, and what I want to add to my controlDict) Maybe with pyFOAM i could access to the field data, and then work on it directly. What do you think? Is is possible? Thank you in advance, Agustín

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July 3, 2017, 12:21		#2
alexeym Senior Member Alexey Matveichev Join Date: Aug 2011 Location: Nancy, France Posts: 1,930 Rep Power: 38	Hi, fieldValues function object seems to do what you want without Python (see $FOAM_SRC/functionObjects/field/fieldValues/controlDict for example of settings). There is also systemCall function object, which can execute arbitrary shell code, so you can execute your Python script and post-process extracted slices.