Vortex diffusion in superfluid turbulence: hysteresis and decay

Authors

  • Maria Stella Mongiovì Università degli Studi di Palermo
  • Lidia Saluto Istituto Nazionale di Alta Matematica "F. Severi"
  • David Jou Universitat Autònoma de Barcelona

DOI:

https://doi.org/10.1478/AAPP.97S1A17

Keywords:

Vortex diffusion, liquid helium, quantum turbulence, quantized vortices, hysteresis, decay.

Abstract

In this paper we consider the effects of vortex diffusion in two paradigmatic inhomogeneous physical situations; radial heat flow between two concentric cylinders, and vortex decay in a finite cylindrical container. Diffusion effects may strongly modify the expected results for the vortex length density L as a function of the heat flux q, leading also to dynamical unexpected features, relating L to time in decay, or to hysteresis behaviour of L for increasing/decreasing heat flux.

Author Biographies

  • Maria Stella Mongiovì, Università degli Studi di Palermo
    Dipartimento di Innovazione Industriale e Digitale (DIID) 90128 Palermo
  • Lidia Saluto, Istituto Nazionale di Alta Matematica "F. Severi"
    Unità di ricerca di Palermo c/o DIID - Università degli Studi di Palermo
  • David Jou, Universitat Autònoma de Barcelona
    Department de Fisica 08193 Bellaterra, Catalonia

Downloads

Published

2019-05-20

Issue

Vol 97, SUPPL NO 1 (2019): Thermocon 2016

Section

THERMOCON 2016 (Conference Proceedings)

License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors who publish with this journal agree to the following terms:
  • Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
  • Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).