Channel 2D VelBFL PressExpol

Test case description: Simple channel flow using BFl velocity inlet boundary and pressure extrapolation 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.