Acceleration of dust particles by vortex ring

Details Acceleration of dust particles by vortex ring Acceleration of dust particles by vortex ring

2009-11-11

arxiv.org/abs/0911.2108v1

Physics

Plasma Physics

Scientific paper

It is shown that nonlinear interaction between large amplitude circularly polarized EM wave and dusty plasma leads to a nonstationary ponderomotive force which in turn produces a vortex ring, and magnetic field. Then the ensuing vortex ring in the direction of propagation of the pump wave can accelerate the micron-size dust particles which are initially at rest and eventually form a non relativistic dust jet. This effect is purely nonstationary and unlike linear vortices, dust particles do not rotate here. Specifically, it is pointed out that the vortex ring or closed filament can become potential candidate for the acceleration of dust in tokamak plasmas.

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