Tests
are performed in a water tank made of good quality glass. The vortex generator works
by gravity. The wall is a glass plate placed horizontal at 10 cm from
the bottom of the tank. Studies are performed by visualization and Particle Image
Velocimetry.
Two dyes tomoscopy
Typical sequence obtained with a white light
laser and two dyes. The entrainement of the near wall fluid and the formation
of a secondary vortex are clearly visible.
Vorticity
maps (P.I.V.)
The vorticity maps allows
to quantify both the primary and secondary vortex
33 (0)3 20 33 53
80 , 
33 (0)3 20 33 71 69, 
patrick.dupont@ec-lille.fr
