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antibubbles in a cyclone eyewall

Author
terwagne, denis
Abstract
A negative bubble, coined antibubble, is composed by a thin air shell that is immersed in a
soapy mixture. A large vortex is generated in the liquid using a mixer. An antibubble is
then created close to the surface. The antibubble is fastly attracted by the vortex. It
rotates arount the core and comes closer and closer. When the stress is large enough, the
vortex deforms the antibubble that winds around the eye vortex. The antibubble looks like
a spiral. Under some conditions, the antibubble splits into several antibubbles that are
ejected out of the eye vortex while the largest part is still trapped the vortex. This latter is
elongated and is absorbed to the bottom of the tank before popping.
Description
Antibubbles are placed in a whirlpool. They deforme, split, explode.
Sponsorship
FNRS, ULg
Date Issued
2009-10-13Subject
antibubble; whirlpool
Type
video/moving image