The file bfs_tg.bse
is the output of the base-flow computation that should be run for a non-dimensional
time of t ≥ 300 to ensure that the solution is steady.
bfs_tg.bse
into VTK format to look at the profile of the base
flow. Note the separation at the step-edge and the reattachment downstream. The streamwise component of the velocity, u, should look like in figure 5.