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Lookup NU author(s): Professor Carlo Barenghi
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Turbulence in superfluid helium is unusual and presents a challenge to fluid dynamicists because it consists of two coupled, interpenetrating turbulent fluids: the first is inviscid with quantized vorticity, and the second is viscous with continuous vorticity. Despite this double nature, the observed spectra of the superfluid turbulent velocity at sufficiently large length scales are similar to those of ordinary turbulence. We present experimental, numerical, and theoretical results that explain these similarities, and illustrate the limits of our present understanding of superfluid turbulence at smaller scales.
Author(s): Barenghi CF, L'vov VS, Roche PE
Publication type: Review
Publication status: Published
Journal: Proceedings of the National Academy of Sciences of the USA
Issue: Suppl. 1
Print publication date: 25/03/2014
Online publication date: 25/03/2014
Acceptance date: 18/02/2014
ISSN (print): 0027-8424
ISSN (electronic): 1091-6490
Publisher: NATL ACAD SCIENCES