RE: Subsonic Aerodynamic Vortex
Like they say ... a picture is worth more than 1000 words.
Will start learning more about aerodinamics with all your post's , I sure will not take a deep dive on it since i dont design planes at all, but is good to know about dinamics.
Do you remember why the learjet crashed in México city ? answer is in the pic you posted, pilot was to close to an airbus 300 turbulence.