Vortex Line Density in Plane Couette Flow in Superfluid Helium

Auteurs-es

  • Michele Sciacca Università di Palermo
  • Maria Stella Mongiovi' Università di Palermo
  • David Jou Universitat Autonoma de Barcelona

DOI :

https://doi.org/10.1685/

Mots-clés :

quantum vortices, coflow and counterflow

Résumé

Recent interest in cryogenic applications has enhanced studies in coflow superfluid turbulence, which is characterized by two fluids, normal and superfluid, moving in the same direction. In our studies we are interested to deal with superfluid turbulence in plane Couette flow, as an illustration of this interesting phenomena. An equation previously proposed to describe the evolution of vortex line density in rotating counterflow turbulent tangles in $^4$He is generalized to incorporate nonvanishing barycentric velocity and velocity gradients. Incorporating our generalized equation into a thermodynamical model previously proposed, we evaluate the vortex density in plane Couette flow. [DOI: 10.1685/CSC09290] About DOI

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Publié

2009-08-12

Numéro

Vol. 3 (2009)

Rubrique

Articles

Licence

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