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Vortex heating in superfluid helium at low temperatures

Lookup NU author(s): Dr David Samuels, Professor Carlo Barenghi

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Abstract

We address the fundamental problem of dissipation of kinetic energy in superfluid turbulence at temperatures low enough that friction against the normal fluid is negligible. We find that the kinetic energy of a turbulent vortex tangle, transformed into compressional energy, can result in a significant heating of the fluid. We suggest that vortex heating can be used to investigate turbulence at these low temperatures, where the traditional second-sound technique fails.

Publication metadata

Author(s): Samuels DC, Barenghi CF

Publication type: Article

Publication status: Published

Journal: Physical Review Letters

Year: 1998

Volume: 81

Issue: 20

Pages: 4381-4383

ISSN (print): 0031-9007

ISSN (electronic): 1079-7114

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevLett.81.4381

DOI: 10.1103/PhysRevLett.81.4381

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