Transformation of a Cylindrical Vortex Generated in a Viscous Layer into a Vortex Ring

Аннотация

The interaction of a short cylindrical vortex elongated along the transverse coordinate with a shear flow near a solid surface is considered. A cylindrical vortex with its ends lowered to the bottom of the channel is shown to turn into a vortex ring. The obtained qualitative model is verified by experiment.