Redistribution of Energy during Horizontal Stretching of Ocean Vortices by Barotropic Currents
- Autores: Zhmur V.1, Harutyunyan D.2
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Afiliações:
- P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
- Moscow Institute of Physics and Technology (State University)
- Edição: Volume 63, Nº 1 (2023)
- Páginas: 3-19
- Seção: Физика моря
- URL: https://journals.rcsi.science/0030-1574/article/view/136219
- DOI: https://doi.org/10.31857/S0030157423010185
- EDN: https://elibrary.ru/AFRQHI
- ID: 136219
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Resumo
The paper proposes a study of the transformation of the physical properties of mesoscale vortices during their strong elongation by horizontal barotropic currents. It is shown that when the core is pulled out, the kinetic and available potential energies of the vortex individually, as well as their sum (the total mechanical energy of the vortex) decreases, and the vortex itself degrades in all physical parameters. The decrease in the energy of the ensemble of vortices when they are pulled out by the background flow is interpreted as a manifestation of the reverse energy cascade property or, in older terminology, the phenomenon of negative viscosity.
Sobre autores
V. Zhmur
P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences
Autor responsável pela correspondência
Email: zhmur-vladimir@mail.ru
Russia, Moscow
D. Harutyunyan
Moscow Institute of Physics and Technology (State University)
Email: zhmur-vladimir@mail.ru
Russia, Moscow
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