To gain a better understanding of scrolling of vortex sheets around a
swept wing in incompressible state, the ENSMA Aerodynamics Laboratory
in Poitiers conducted a series of wind tunnel tests over several years
that provided interesting results, in particular concerning fluctuati
ons in the upper surface separation and reattachment. These results gi
ve valuable data for apprehending the corresponding instabilities of t
he vortex that interfere with turbulence.