:A LARGE WHEEL-IN VERSION OF THE BOTTLE-VORTEX DEVICE. ALLOWS CLOSE
VIEW OF CIRCULATION AND INSTABILITIES.
- Fill to 2/3 depth with clear water. (or fill to above the injector
- Wheel in to class. Set up video camera if need be. Image close
near the top is best.
- Hook pump to ac and turn on.
- Vortex forms in a couple of minutes.
- After vortex forms, can see trajectories by dumping in a half bottle of
food coloring near the outer rim (this is why the vortex looks blue in the
VORTEX CLOSE UP,
VIEWED FROM THE SIDE