Triple vortex ring structure in superfluid helium II

Demosthenes Kivotides, Carlo F. Barenghi, David C. Samuels

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Superfluids such as helium II consist of two interpenetrating fluids: the normal fluid and the superfluid. The helium II vortex ring has generally been considered merely as a superfluid object, neglecting any associated motion of the normal fluid. We report a three-dimensional calculation of the coupled motion of the normal-fluid and superfluid components, which shows that the helium II vortex ring consists of a superfluid vortex ring accompanied by two coaxial normal-fluid vortex rings of opposite polarity. The three vortex rings form a coherent, dissipative structure.
Original languageEnglish
Pages (from-to)777-779
Number of pages3
JournalScience
Volume290
Issue number5492
DOIs
Publication statusPublished - 27 Oct 2000

Keywords

  • helium
  • article
  • cell polarity
  • flow kinetics
  • flow measurement
  • mathematical computing
  • priority journal
  • structure analysis
  • surface property
  • three dimensional imaging
  • turbulent flow

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