dorsal/arxiv
View SchemaVortex Ring Reconnections
| Authors | Philippe Chatelain, Demosthenes Kivotides, Anthony Leonard |
|---|---|
| Categories | |
| ArXiv ID | physics/0209014 |
| URL | https://arxiv.org/abs/physics/0209014 |
Abstract
We investigate numerically the Navier-Stokes dynamics of reconnecting vortex rings at small $Re$ number. We find that reconnections are dissipative due to the smoothing of vorticity gradients at reconnection kinks and to the formation of secondary structures of stretched anti-parallel vorticity which transfer kinetic energy to small scales where it is subsequently dissipated efficiently. In addition, the relaxation of the reconnection kinks excites Kelvin waves which due to strong damping are of low wavenumber and affect directly only large scale properties of the flow.
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"date_created": "2026-03-02T18:00:38.908000Z",
"date_modified": "2026-03-02T18:00:38.908000Z",
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"abstract": "We investigate numerically the Navier-Stokes dynamics of reconnecting vortex\nrings at small $Re$ number. We find that reconnections are dissipative due to\nthe smoothing of vorticity gradients at reconnection kinks and to the formation\nof secondary structures of stretched anti-parallel vorticity which transfer\nkinetic energy to small scales where it is subsequently dissipated efficiently.\nIn addition, the relaxation of the reconnection kinks excites Kelvin waves\nwhich due to strong damping are of low wavenumber and affect directly only\nlarge scale properties of the flow.",
"arxiv_id": "physics/0209014",
"authors": [
"Philippe Chatelain",
"Demosthenes Kivotides",
"Anthony Leonard"
],
"categories": [
"physics.flu-dyn"
],
"title": "Vortex Ring Reconnections",
"url": "https://arxiv.org/abs/physics/0209014"
},
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