Visualization of Kelvin waves on quantum vortices

Abstract

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.

Includes 2 videos. Submitted to the Gallery of Fluid Motion of the 65th Annual DFD Meeting of the APS in San Diego, 2012

Cited by in corpus (1)

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