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Mass transport by vortex motions

Presented by: 
Y Kimura Nagoya University
Date: 
Thursday 26th July 2012 - 11:45 to 12:05
Venue: 
INI Seminar Room 1
Session Chair: 
Andrew Gilbert
Abstract: 
Mass transport by the motion of 3D vortex filaments is studied. Perhaps the simplest example of such a transport is one by a vortex ring. As another example, we recently demonstrated that a 3D vortex soliton (Hasimoto soliton) can also transport mass along with its propagation. The common features of the transport, one by a vortex ring and the other by a vortex, is that some fluid particles move in closed orbits which make knots with the vortices. For the analysis of the mechanism of this trapping, a model composed of two straight vortex filaments in the 3D space, which is called the chopsticks model, is presented. We report mass transport by this model.
University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons