Tip vortex cavitation suppression by water ejection from wing tip

In the present study we investigated how a water jet, used to create a winglet-like effect, actively reduces or suppress the cavitation formed into the core of a tip vortex. Modifications of the vortex structure were monitored by measuring the velocity profiles with laser Doppler velocimetry. High-speed jets proved to be very effective in increasing the size of the vortex core, thus inhibiting the formation of tip vortex cavitation.