Measurements of Vortex Line Density Generated by a Quartz Tuning Fork in Superfluid \(4}\)He

We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in superfluid \( pound sterling \)He at 1.6 K. The force-velocity response of a quartz tuning fork operating at a frequency of 31 kHz exhibited th...

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Bibliographic Details
Published inJournal of low temperature physics Vol. 183; no. 3-4; pp. 208 - 214
Main Authors Jackson, MJ, Kolosov, O, Schmoranzer, D, Skrbek, L, Tsepelin, V, Woods, A J
Format Journal Article
LanguageEnglish
Published 01.05.2016
Subjects
Attenuation
Fluid flow
Fluids
Quartz
Tuning
Turbulence
Turbulent flow
Vortices
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Summary:We present proof-of-concept measurements of the vortex line density generated by a quartz tuning fork resonator probed by the attenuation of second sound in superfluid \( pound sterling \)He at 1.6 K. The force-velocity response of a quartz tuning fork operating at a frequency of 31 kHz exhibited the onset of extra damping at a velocity of 0.5 ms\(-1}\). Attenuation of the 5th resonant mode of second sound was observed at the same velocity, indicating the production of vortex lines. Our measurements demonstrate that an increase of the drag coefficient corresponds to the development of quantum turbulence.
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ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-015-1397-4