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Evaporation of a packet of quantized vorticity

C. F. Barenghi·D. C. Samuels
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Abstract

A recent experiment has confirmed the existence of quantized turbulence in superfluid He3-B and suggested that turbulence is inhomogenous and spreads away from the region around the vibrating wire where it is created. To interpret the experiment we study numerically the diffusion of a packet of quantized vortex lines which is initially confined inside a small region of space. We find that reconnections fragment the packet into a gas of small vortex loops which fly away. We determine the time scale of the process and find that it is in order of magnitude agreement with the experiment.

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C. F. Barenghi, D. C. Samuels. 2002-08-16. Evaporation of a packet of quantized vorticity. https://doi.org/10.1103/physrevlett.89.155302

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