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Cross-Component Energy Transfer in Superfluid Helium-4

Lookup NU author(s): Peter Stasiak, Dr Andrew BaggaleyORCiD, Professor Carlo Barenghi, Dr Luca Galantucci



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


© 2024, Crown.The reciprocal energy and enstrophy transfers between normal fluid and superfluid components dictate the overall dynamics of superfluid 4He including the generation, evolution and coupling of coherent structures, the distribution of energy among lengthscales, and the decay of turbulence. To better understand the essential ingredients of this interaction, we employ a numerical two-way model which self-consistently accounts for the back-reaction of the superfluid vortex lines onto the normal fluid. Here we focus on a prototypical laminar (non-turbulent) vortex configuration which is simple enough to clearly relate the geometry of the vortex line to energy injection and dissipation to/from the normal fluid: a Kelvin wave excitation on two vortex anti-vortex pairs evolving in (a) an initially quiescent normal fluid, and (b) an imposed counterflow. In (a), the superfluid injects energy and vorticity in the normal fluid. In (b), the superfluid gains energy from the normal fluid via the Donnelly–Glaberson instability.

Publication metadata

Author(s): Stasiak PZ, Baggaley AW, Krstulovic G, Barenghi CF, Galantucci L

Publication type: Article

Publication status: Published

Journal: Journal of Low Temperature Physics

Year: 2024

Pages: epub ahead of print

Online publication date: 29/01/2024

Acceptance date: 30/12/2023

Date deposited: 05/02/2024

ISSN (print): 0022-2291

ISSN (electronic): 1573-7357

Publisher: Springer


DOI: 10.1007/s10909-023-03042-5


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Funder referenceFunder name
Istituto Nazionale di Alta Matematica (INDAM)
Leverhulme Trust
Quantum simulators for fundamental physics