Measurement of the normal-fluid velocity in superfluids

Demosthenes Kivotides, Carlo F. Barenghi, Yuri A. Sergeev

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Numerical calculations of (finite temperature) superfluid vortex ring propagation against a particulate sheet show that the solid particle trajectories collapse to a very good approximation to the normal-fluid path lines. We propose an experiment in which, by measuring the solid particles' velocities, direct information about the instantaneous normal-fluid velocity values could be obtained.
Original languageEnglish
Article number215302
Number of pages4
JournalPhysical Review Letters
Volume95
Issue number21
DOIs
Publication statusPublished - 17 Nov 2005

Fingerprint

vortex rings
particle trajectories
fluids
particulates
propagation
approximation
temperature

Keywords

  • finite temperature
  • normal-fluid velocity
  • solid particle trajectories
  • superfluids
  • approximation theory
  • fluid dynamics
  • numerical methods
  • thermal effects
  • velocity measurement
  • supercritical fluids

Cite this

Kivotides, Demosthenes ; Barenghi, Carlo F. ; Sergeev, Yuri A. / Measurement of the normal-fluid velocity in superfluids. In: Physical Review Letters. 2005 ; Vol. 95, No. 21.
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Measurement of the normal-fluid velocity in superfluids. / Kivotides, Demosthenes; Barenghi, Carlo F.; Sergeev, Yuri A.

In: Physical Review Letters, Vol. 95, No. 21, 215302, 17.11.2005.

Research output: Contribution to journalArticle

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KW - normal-fluid velocity

KW - solid particle trajectories

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KW - approximation theory

KW - fluid dynamics

KW - numerical methods

KW - thermal effects

KW - velocity measurement

KW - supercritical fluids

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