Flow of He II due to an Oscillating Grid in the Low-Temperature Limit

H. A. Nichol, L. Skrbek, P. C. Hendry, and P. V. E. McClintock
Phys. Rev. Lett. 92, 244501 – Published 15 June 2004

Abstract

The macroscopic flow properties of pure He II are probed in the limit of zero temperature using an oscillating grid. As the oscillation amplitude passes a first critical threshold, the resonant frequency starts decreasing but the flow remains nondissipative. Beyond a second critical amplitude, the flow undergoes a transition to turbulence and becomes dissipative. Nonlinearity and hysteresis observed between the thresholds are attributed to a boundary layer of quantized vortices.

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  • Received 26 August 2003

DOI:https://doi.org/10.1103/PhysRevLett.92.244501

©2004 American Physical Society

Authors & Affiliations

H. A. Nichol1, L. Skrbek2, P. C. Hendry1, and P. V. E. McClintock1

  • 1Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
  • 2Joint Low Temperature Laboratory, Institute of Physics ASCR and Charles University, V Holešovičkách 2, 180 00 Prague, Czech Republic

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Issue

Vol. 92, Iss. 24 — 18 June 2004

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