Viscosity of liquid 4He and quantum of circulation: Are they related?

Victor S. L'vov, Ladislav Skrbek, Katepalli R. Sreenivasan

Research output: Contribution to journalArticle

Abstract

In the vicinity of the superfluid transition in liquid 4He, we explore the relation between two apparently unrelated physical quantities-the kinematic viscosity, ν, in the normal state and the quantum of circulation, κ, in the superfluid state. The model developed here leads to the simple relationship ν ≈ κ/6, and links the classical and quantum flow properties of liquid 4He. We critically examine available data relevant to this relation and find that the prediction holds well at the saturated vapor pressure. Additionally,we predict the kinematic viscosity for liquid 4He along the λ-line at negative pressures

Original languageEnglish (US)
Article number041703
JournalPhysics of Fluids
Volume26
Issue number4
DOIs
StatePublished - Apr 15 2014

ASJC Scopus subject areas

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

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