Lookup NU author(s): Mae Mesgarnezhad,
Dr Andrew Baggaley,
Professor Carlo Barenghi
This is the authors' accepted manuscript of an article that has been published in its final definitive form by IOP Publishing , 2018.
For re-use rights please refer to the publisher's terms and conditions.
We numerically study the evolution of a small turbulent region of quantised vorticity in superfluid helium, a regime which can be realised in the laboratory. We show that the turbulence achieves a fluctuating steady-state in terms of dynamics (energy), geometry (length, writhing) and topology (linking). After defining the knot spectrum, we show that, at any instant, the turbulence consists of many unknots and few large loops of great geometrical and topological complexity.
Author(s): Mesgarnezhad M, Cooper RG, Baggaley AW, Barenghi CF
Publication type: Article
Publication status: Published
Journal: Fluid Dynamics Research
Print publication date: 01/02/2018
Online publication date: 22/11/2017
Acceptance date: 27/03/2017
Date deposited: 25/05/2017
ISSN (print): 0169-5983
ISSN (electronic): 1873-7005
Publisher: IOP Publishing
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