Velocity distributions of tracer particles in thermal counterflow in superfluid 4He

Yoshikazu Mineda, Makoto Tsubota, Yuri A. Sergeev, Carlo F. Barenghi, and W. F. Vinen
Phys. Rev. B 87, 174508 – Published 13 May 2013

Abstract

Quantum turbulence accompanying thermal counterflow in superfluid 4He was recently visualized by the Maryland group, using micrometer-sized tracer particles of solid hydrogen [Paoletti, Fiorito, Sreenivasan, and Lathrop, J. Phys. Soc. Jpn. 77, 111007 (2008)]. In order to understand the observations, we formulate the coupled dynamics of fine particles and quantized vortices, in the presence of a relative motion of the normal and superfluid components. Numerical simulations based on this formulation are shown to agree reasonably well with experimental observations of the velocity distributions of the tracer particles in thermal counterflow.

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  • Received 5 February 2013

DOI:https://doi.org/10.1103/PhysRevB.87.174508

©2013 American Physical Society

Authors & Affiliations

Yoshikazu Mineda1, Makoto Tsubota2, Yuri A. Sergeev3, Carlo F. Barenghi4, and W. F. Vinen5

  • 1Department of Physics, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan
  • 2Department of Physics, The OCU Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
  • 3School of Mechanical and Systems Engineering, University of Newcastle, Newcastle upon Tyne, NE1 7RU, United Kingdom
  • 4School of Mathematics, University of Newcastle, Newcastle upon Tyne, NE1 7RU, United Kingdom
  • 5School of Physics and Astronomy, University of Birmingham B15 2TT, United Kingdom

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Issue

Vol. 87, Iss. 17 — 1 May 2013

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