You can find an extensive hands-on tutorial, courtesy of the ALCF PythonFOAM workshop, here: https://www.youtube.com/watch?v=-Sa2OEssru8 PODFoam/: A pimpleFoam solver ...
Pillow is the friendly PIL fork by Jeffrey A. Clark and contributors. PIL is the Python Imaging Library by Fredrik Lundh and contributors. As of 2019, Pillow development is supported by Tidelift. The ...