Stability and Dissipation of Laminar Vortex Flow in Superfluid He3B

V. B. Eltsov, R. de Graaf, P. J. Heikkinen, J. J. Hosio, R. Hänninen, M. Krusius, and V. S. L’vov
Phys. Rev. Lett. 105, 125301 – Published 14 September 2010

Abstract

A central question in the dynamics of vortex lines in superfluids is dissipation on approaching the zero temperature limit T0. From both NMR measurements and vortex filament calculations, we find that vortex flow remains laminar up to large Reynolds numbers Reα103 in a cylinder filled with He3B. This is different from viscous fluids and superfluid He4, where the corresponding responses are turbulent. In He3B, laminar vortex flow is possible in the bulk volume even in the presence of sizable perturbations from axial symmetry to below 0.2Tc. The laminar flow displays no excess dissipation beyond mutual friction, which vanishes in the T0 limit, in contrast with turbulent vortex motion where dissipation has been earlier measured to approach a large T-independent value at T0.2Tc.

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  • Received 3 May 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.125301

© 2010 The American Physical Society

Authors & Affiliations

V. B. Eltsov1,2, R. de Graaf1, P. J. Heikkinen1, J. J. Hosio1, R. Hänninen1, M. Krusius1, and V. S. L’vov3

  • 1Low Temperature Laboratory, School of Science and Technology, Aalto University, Finland
  • 2Kapitza Institute for Physical Problems, Kosygina 2, 119334 Moscow, Russia
  • 3Department of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, Israel

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Vol. 105, Iss. 12 — 17 September 2010

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