Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Decay of pure quantum turbulence in superfluid He-3-B.
AU - Bradley, D. Ian
AU - Clubb, D. O.
AU - Fisher, Shaun N.
AU - Guénault, A.M.
AU - Haley, Richard P.
AU - Matthews, C. J.
AU - Pickett, George R.
AU - Tsepelin, Viktor
AU - Zaki, K.
PY - 2006/1/23
Y1 - 2006/1/23
N2 - We describe measurements of the decay of pure superfluid turbulence in superfluid He-3-B, in the low temperature regime where the normal fluid density is negligible. We follow the decay of the turbulence generated by a vibrating grid as detected by vibrating wire resonators. Despite the absence of any classical normal fluid dissipation processes, the decay is consistent with turbulence having the classical Kolmogorov energy spectrum and is remarkably similar to that measured in superfluid He-4 at relatively high temperatures. Further, our results strongly suggest that the decay is governed by the superfluid circulation quantum rather than kinematic viscosity.
AB - We describe measurements of the decay of pure superfluid turbulence in superfluid He-3-B, in the low temperature regime where the normal fluid density is negligible. We follow the decay of the turbulence generated by a vibrating grid as detected by vibrating wire resonators. Despite the absence of any classical normal fluid dissipation processes, the decay is consistent with turbulence having the classical Kolmogorov energy spectrum and is remarkably similar to that measured in superfluid He-4 at relatively high temperatures. Further, our results strongly suggest that the decay is governed by the superfluid circulation quantum rather than kinematic viscosity.
KW - GRID TURBULENCE
KW - FINITE CHANNEL
KW - GENERATION
U2 - 10.1103/PhysRevLett.96.035301
DO - 10.1103/PhysRevLett.96.035301
M3 - Journal article
VL - 96
SP - 035301
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 3
ER -