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Lookup NU author(s): Professor Carlo Barenghi
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We consider finite-amplitude Kelvin waves on an inviscid vortex assuming that the vortex core has infinitesimal thickness. By numerically solving the governing Biot-Savart equation of motion, we study how the frequency of the Kelvin waves and the velocity of the perturbed ring depend on the Kelvin wave amplitude. In particular, we show that, if the amplitude of the Kelvin waves is sufficiently large, the perturbed vortex ring moves backwards. © 2006 The American Physical Society.
Author(s): Barenghi CF, Hanninen R, Tsubota M
Publication type: Article
Publication status: Published
Journal: Physical Review E
ISSN (print): 1539-3755
ISSN (electronic): 1550-2376
Publisher: American Physical Society
Notes: Article no. 046303
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