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Visualization of Kelvin waves on quantum vortices
Автор: fyfluiddynamics
Загружено: 2012-11-27
Просмотров: 12586
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Video credit: E. Fonda, D. P. Meichle, N. T. Ouellette, S. Hormoz, K. R. Sreenivasan, D. P. Lathrop
In superfluid helium, vorticity is quantized and constrained on line-like phase singularities, called quantum or quantized vortices. By visualizing the motion of sub-micron frozen particles in superfluid $^{4}$He, we directly observe for the first time the helical Kelvin waves excited after quantized vortex reconnections. We compare the data with self-similar solutions of vortex filament models. We report the results in a fluid dynamic video.
For more information: http://arxiv.org/abs/1210.5194
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