Kelvin waves cascade in superfluid turbulence

D. Kivotides, J. C. Vassilicos, D. C. Samuels, C. F. Barenghi

Research output: Contribution to journalArticle

126 Citations (Scopus)

Abstract

We study numerically the interaction of four initial superfluid vortex rings in the absence of any dissipation or friction. We find evidence for a cascade of Kelvin waves generated by individual vortex reconnection events which transfers energy to higher and higher wave numbers k. After the vortex reconnections occur, the energy spectrum scales as k−1 and the curvature spectrum becomes flat. These effects highlight the importance of Kelvin waves and reconnections in the transfer of energy within a turbulent vortex tangle.
Original languageEnglish
Pages (from-to)3080-3083
Number of pages4
JournalPhysical Review Letters
Volume86
Issue number14
DOIs
Publication statusPublished - 2 Apr 2001

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Kelvin waves
cascades
turbulence
vortices
vortex rings
energy spectra
friction
dissipation
energy transfer
curvature
interactions
energy

Keywords

  • cascades (fluid mechanics)
  • computational fluid dynamics
  • energy transfer
  • friction
  • turbulent flow
  • vortex flow

Cite this

Kivotides, D., Vassilicos, J. C., Samuels, D. C., & Barenghi, C. F. (2001). Kelvin waves cascade in superfluid turbulence. Physical Review Letters, 86(14), 3080-3083. https://doi.org/10.1103/PhysRevLett.86.3080
Kivotides, D. ; Vassilicos, J. C. ; Samuels, D. C. ; Barenghi, C. F. / Kelvin waves cascade in superfluid turbulence. In: Physical Review Letters. 2001 ; Vol. 86, No. 14. pp. 3080-3083.
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Kivotides, D, Vassilicos, JC, Samuels, DC & Barenghi, CF 2001, 'Kelvin waves cascade in superfluid turbulence', Physical Review Letters, vol. 86, no. 14, pp. 3080-3083. https://doi.org/10.1103/PhysRevLett.86.3080

Kelvin waves cascade in superfluid turbulence. / Kivotides, D.; Vassilicos, J. C.; Samuels, D. C.; Barenghi, C. F.

In: Physical Review Letters, Vol. 86, No. 14, 02.04.2001, p. 3080-3083.

Research output: Contribution to journalArticle

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