Your browser doesn't support javascript.
loading
Evolution of a superfluid vortex filament tangle driven by the Gross-Pitaevskii equation.
Villois, Alberto; Proment, Davide; Krstulovic, Giorgio.
Afiliación
  • Villois A; School of Mathematics, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom.
  • Proment D; School of Mathematics, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, United Kingdom.
  • Krstulovic G; Laboratoire J.L. Lagrange, UMR7293, Université de la Côte d'Azur, CNRS, Observatoire de la Côte d'Azur, Boîte Postale 4229, 06304 Nice Cedex 4, France.
Phys Rev E ; 93(6): 061103, 2016 06.
Article en En | MEDLINE | ID: mdl-27415198
The development and decay of a turbulent vortex tangle driven by the Gross-Pitaevskii equation is studied. Using a recently developed accurate and robust tracking algorithm, all quantized vortices are extracted from the fields. The Vinen's decay law for the total vortex length with a coefficient that is in quantitative agreement with the values measured in helium II is observed. The topology of the tangle is then investigated showing that linked rings may appear during the evolution. The tracking also allows for determining the statistics of small-scale quantities of vortex lines, exhibiting large fluctuations of curvature and torsion. Finally, the temporal evolution of the Kelvin wave spectrum is obtained providing evidence of the development of a weak-wave turbulence cascade.

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev E Año: 2016 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev E Año: 2016 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Estados Unidos