Coherent laminar and turbulent motion of toroidal vortex bundles

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 thre...

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Bibliographic Details
Published inPhysics of fluids (1994) Vol. 26; no. 2
Main Authors Wacks, D. H., Baggaley, A. W., Barenghi, C. F.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.02.2014
Subjects
Bundles
Bundling
Computational fluid dynamics
Filaments
Fluid dynamics
Fluid flow
Fluids
Helium
Kelvin waves
Physics
Superfluidity
Vortex filaments
Vortex rings
Vortices
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Summary: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.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.4864659