Coherent laminar and turbulent motion of toroidal vortex bundles

Wacks, D.H., Baggaley, A.W. and Barenghi, C.F. (2014) Coherent laminar and turbulent motion of toroidal vortex bundles. Physics of Fluids, 26(2), 027102. (doi: 10.1063/1.4864659)

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Motivated by experiments performed in superfluid helium, we study numerically the motion of toroidal bundles of vortex filaments in an inviscid fluid. We find that the evolution of these large-scale vortex structures involves the generalized leapfrogging of the constituent vortex rings. Despite three dimensional perturbations in the form of Kelvin waves and vortex reconnections, toroidal vortex bundles retain their coherence over a relatively large distance (compared to their size), in agreement with experimental observations.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Baggaley, Dr Andrew
Authors: Wacks, D.H., Baggaley, A.W., and Barenghi, C.F.
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Physics of Fluids
ISSN (Online):1089-7666

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