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arXiv · 1111.1057

Interpreting superfluid spin up through the response of the container

Cornelis Anthony van Eysden·Andrew Melatos
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Abstract

A recipe is presented for interpreting non-invasively the transport processes at work during relaxation of a cylindrical, superfluid-filled vessel, after it is accelerated impulsively and then allowed to respond to the viscous torque exerted by the contained fluid. The recipe exploits a recently published analytic solution for Ekman pumping in a two-component superfluid, which treats the back-reaction self-consistently in arbitrary geometry for the first time. The applicability of the recipe to He II, 3He, 3He-4He mixtures and Bose-Einstein condensates is assessed, and the effects of turbulence discussed.

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Cornelis Anthony van Eysden, Andrew Melatos. 2011-11-04. Interpreting superfluid spin up through the response of the container. https://doi.org/10.1007/s10909-011-0444-z

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