First OpenFOAM assignment

You should start working on this once you have completed the first few OpenFOAM tutorials.

Implement a backwards facing step case in OpenFOAM. Use the icoFoam solver, an expansionfactor of 2 and Re=200 (laminar) and Re=1000 (unstable, turbulent?). See, e.g., this link

For Re=1000 the default numerical scheme in OpenFoam should result in an unstable solution and wiggles. Find an appropriate scheme that removes the wiggles (upwind/TVD).