Villois, Alberto, Salman, Hayder and Proment, Davide ORCID: https://orcid.org/0000-0002-9472-0097 (2015) Scattering of Line-Ring Vortices in a Superfluid. Journal of Low Temperature Physics, 180 (1-2). pp. 68-81. ISSN 0022-2291
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Abstract
We study the scattering of vortex rings by a superfluid line vortex using the Gross-Pitaevskii equation in a parameter regime where a hydrodynamic description based on a vortex filament approximation is applicable. By using a vortex extraction algorithm, we are able to track the location of the vortex ring as a function of time. Using this, we show that the scattering of the vortex ring in our Gross-Pitaevskii simulations is well captured by the local induction approximation of a vortex filament model for a wide range of impact parameters. The scattering of a vortex ring by a line vortex is characterised by the initial offset of the centre of the ring from the axis of the vortex. We find that a strong asymmetry exists in the scattering of a ring as a function of this initial scattering parameter.
Item Type: | Article |
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Uncontrolled Keywords: | physics.flu-dyn,cond-mat.other |
Faculty \ School: | Faculty of Science > School of Mathematics (former - to 2024) |
UEA Research Groups: | Faculty of Science > Research Groups > Quantum Fluids (former - to 2024) Faculty of Science > Research Groups > Centre for Photonics and Quantum Science Faculty of Science > Research Groups > Fluids & Structures Faculty of Science > Research Groups > Quantum Matter Faculty of Science > Research Groups > Numerical Simulation, Statistics & Data Science |
Depositing User: | Pure Connector |
Date Deposited: | 24 Jul 2015 20:56 |
Last Modified: | 13 Nov 2024 00:39 |
URI: | https://ueaeprints.uea.ac.uk/id/eprint/53520 |
DOI: | 10.1007/s10909-015-1293-y |
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