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This article is cited in 8 scientific papers (total in 8 papers)
PLASMA, HYDRO- AND GAS DYNAMICS
Zonal flows in two-dimensional decaying magnetohydrodynamic turbulence on a $\beta$-plane
T. A. Zinyakovab, A. S. Petrosyanba a Space Research Institute, Russian Academy of Sciences, Moscow, Russia
b Moscow Institute of Physics and Technology (State University), Dolgoprudnyi, Moscow region, Russia
Abstract:
A scale for two-dimensional $\beta$-plane magnetohydrodynamic turbulence is proposed that characterizes an upper bound of the energy containing interval similar to a classical Rhines scale for neutral fluid turbulence on a $\beta$-plane. It is found that only unsteady zonal flows with complex temporal dynamics are formed in two-dimensional magnetohydrodynamic turbulence on the $\beta$-plane. It is shown that flow nonstationarity is due to the appearance of isotropic magnetic islands caused by the Lorentz force in the system. The characteristic dimensions of a flow are in agreement with the proposed scale.
Received: 07.05.2018 Revised: 25.06.2018
Citation:
T. A. Zinyakov, A. S. Petrosyan, “Zonal flows in two-dimensional decaying magnetohydrodynamic turbulence on a $\beta$-plane”, Pis'ma v Zh. Èksper. Teoret. Fiz., 108:2 (2018), 75–82; JETP Letters, 108:2 (2018), 85–92
Linking options:
https://www.mathnet.ru/eng/jetpl5621 https://www.mathnet.ru/eng/jetpl/v108/i2/p75
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Abstract page: | 202 | Full-text PDF : | 43 | References: | 20 | First page: | 7 |
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