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Lookup NU author(s): Dr Andrew BaggaleyORCiD, Professor Carlo Barenghi
To explain the observed decay of superfluid turbulence at very low temperature, it has been proposed that a cascade of Kelvin waves (analogous to the classical Kolmogorov cascade) transfers kinetic energy to length scales that are small enough that sound can be radiated away. We report results of numerical simulations of the interaction of quantized vortex filaments. We observe the development of the Kelvin-waves cascade, and compute the statistics of the curvature, the amplitude spectrum (which we compare with competing theories), and the fractal dimension.
Author(s): Baggaley AW, Barenghi CF
Publication type: Article
Publication status: Published
Journal: Physical Review B
Year: 2011
Volume: 83
Issue: 13
Print publication date: 08/04/2011
Date deposited: 20/02/2012
ISSN (print): 1098-0121
ISSN (electronic): 1550-235X
Publisher: American Physical Society
URL: http://dx.doi.org/10.1103/PhysRevB.83.134509
DOI: 10.1103/PhysRevB.83.134509
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