This channel is dedicated to CFD tutorials in OpenFOAM.
I try to incorporate elements of pre/post-processing including mesh generation in gmsh, and post-processing in paraView. I also try to incorporate relevant fluid dynamical theory along the way. I post all OpenFOAM code at github.com/meinarsve/CFDwOpenFoam
If you have specific wishes feel free to post suggestions for future tutorials.
OpenFOAM is an open source CFD solver written in c++ and distributed by the OpenFOAM Foundation. OpenFOAM runs on Linux OS and is licenced under GNU GPL. It may be downloaded freely at www.openfoam.org/download/
Good luck and happy foaming!