Channel 2D VelBB PressExpol

Test case description: Simple channel flow using velocity bounce back inlet boundary and pressure extrapolation outlet boundaryusing velocity bounce back inlet boundary and pressure expol outlet boundary.

using symmetry at y-Axis. So computing only the lower part of the channel. The upper part of the channel is symmetric to the lower part.

The templates directory contains a shepherd config file and all necessary template files to run convergence studies for mesh refinement and omega. For numeric stability the Reynolds number has been decreased to 10 to ensure the simulations stay below limits of LBM method.