Vibrations of a diamagnetically levitated water droplet

Details Vibrations of a diamagnetically levitated water droplet Vibrations of a diamagnetically levitated water droplet

2010-01-19

arxiv.org/abs/1001.3433v2

Phys. Rev. E 81, 056312 (2010)

Physics

Fluid Dynamics

3 figures; accepted for publication in Phys. Rev. E, Apr 23, 2010

Scientific paper

10.1103/PhysRevE.81.056312

We measure the frequencies of small-amplitude shape oscillations of a magnetically-levitated water droplet. The droplet levitates in a magnetogravitational potential trap. The restoring forces of the trap, acting on the droplet's surface in addition to the surface tension, increase the frequency of the oscillations. We derive the eigenfrequencies of the normal mode vibrations of a spherical droplet in the trap and compare them with our experimental measurements. We also consider the effect of the shape of the potential trap on the eigenfrequencies.

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