Thermodynamical description and vortex formation at the superfluid transition in 4He
DOI:
https://doi.org/10.1478/AAPP.97S1A24Keywords:
Superfluid transition, order parameter, Lagrange multipliers, liquid helium, quantum turbulence, quantized vortices.Abstract
In this paper, a system of field equations is written, able to describe the superfluid ransition, under the hypothesis that the liquid is at rest, in the presence of heat flux and of a small production of vortices below the superfluid transition temperature. The proposed model chooses as fundamental fields the energy density, the heat flux, the averaged vortex line length per unit volume and an order parameter that controls the transition, having dimension of density. Using Liu procedure, restrictions for the constitutive quantities are obtained.Downloads
Published
2019-05-20
Issue
Section
THERMOCON 2016 (Conference Proceedings)
License
This work is licensed under a Creative Commons Attribution 4.0 International License.
- 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).
