Video 1. Separated flow past an aerofoil. Notice the flow reversal in the eddy, small value of the velocity in the eddy, and how the fluid particles leave the vicinity of the surface at the separation point.
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
These videos, all available on YouTube, are demonstrated in the introductory lecture for the module on separated flows, MSc in Advanced Computational Methods for Aeronautics, Department of Aeronautics, Imperial College London.