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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2023, Volume 118, Issue 6, Pages 430–437
DOI: https://doi.org/10.31857/S1234567823180076
(Mi jetpl7041)
 

PLASMA, HYDRO- AND GAS DYNAMICS

Two dynamical regimes of coherent columnar vortices in a rotating fluid

D. D. Tumachevab, S. V. Filatovba, S. S. Vergelesac, A. A. Levchenkocab

a Landau Institute for Theoretical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia
b Osipyan Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka, Moscow region, 142432 Russia
c Faculty of Physics, National Research University Higher School of Economics, Moscow, 101000 Russia
References:
Abstract: Vortex flow generation in an incompressible fluid was investigated experimentally inside a rotating closed cubic aquarium. The flow was excited by producing small-scale eddies near the side edges of the cube. Coherent columnar vortices-cyclones extending from the bottom to the lid of the cube were observed in the liquid volume. The lifetime of the cyclones was much longer than the attenuation time due to the viscous friction on the bottom and the lid. It was found that there are two regimes of quasi-two-dimensional turbulence, which are characterized by different ways of interaction between quasi two-dimensional flow and inertial waves. The radial profiles of the time-averaged azimuth velocity in the coherent vortices in these two regimes are investigated. It is shown that the vortices differ in size and in vorticity distribution along the radius.
Funding agency Grant number
Russian Science Foundation 22-22-00977
Ministry of Science and Higher Education of the Russian Federation 075-15-2019-1893
This work was performed in the Laboratory “Modern Hydrodynamics,” which was created at the Landau Institute for Theoretical Physics, Russian Academy of Science under the support of the Ministry of Science and Higher Education of the Russian Federation (project no. 075-15-2019-1893), and was supported by the Russian Science Federation (project no. 22-22-00977).
Received: 17.07.2023
Revised: 02.08.2023
Accepted: 02.08.2023
English version:
Journal of Experimental and Theoretical Physics Letters, 2023, Volume 118, Issue 6, Pages 426–432
DOI: https://doi.org/10.1134/S0021364023602476
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: D. D. Tumachev, S. V. Filatov, S. S. Vergeles, A. A. Levchenko, “Two dynamical regimes of coherent columnar vortices in a rotating fluid”, Pis'ma v Zh. Èksper. Teoret. Fiz., 118:6 (2023), 430–437; JETP Letters, 118:6 (2023), 426–432
Citation in format AMSBIB
\Bibitem{TumFilVer23}
\by D.~D.~Tumachev, S.~V.~Filatov, S.~S.~Vergeles, A.~A.~Levchenko
\paper Two dynamical regimes of coherent columnar vortices in a rotating fluid
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2023
\vol 118
\issue 6
\pages 430--437
\mathnet{http://mi.mathnet.ru/jetpl7041}
\crossref{https://doi.org/10.31857/S1234567823180076}
\edn{https://elibrary.ru/wxwjog}
\transl
\jour JETP Letters
\yr 2023
\vol 118
\issue 6
\pages 426--432
\crossref{https://doi.org/10.1134/S0021364023602476}
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