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电信和无线电工程
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN 打印: 0040-2508
ISSN 在线: 1943-6009

卷:
卷 78, 2019 卷 77, 2018 卷 76, 2017 卷 75, 2016 卷 74, 2015 卷 73, 2014 卷 72, 2013 卷 71, 2012 卷 70, 2011 卷 69, 2010 卷 68, 2009 卷 67, 2008 卷 66, 2007 卷 65, 2006 卷 64, 2005 卷 63, 2005 卷 62, 2004 卷 61, 2004 卷 60, 2003 卷 59, 2003 卷 58, 2002 卷 57, 2002 卷 56, 2001 卷 55, 2001 卷 54, 2000 卷 53, 1999 卷 52, 1998 卷 51, 1997

电信和无线电工程

DOI: 10.1615/TelecomRadEng.v54.i1.20
pages 16-27

Nonlinear Mechanisms of Formation of Large-scale Vortices in Atmospheres of Planets

Fedor Fedorovich Kamenets
Moscow Institute of Physics and Technology, 141700, Institutski per., 9, Dolgoprudny, Russia
Ivan Ivanovich Korobov
Moscow Institute of Physics and Technology, per. Institutskii 9, Dolgoprudnyi, Moscow oblast', 141700 Russia
Mikhail Fedorovich Ivanov
Institute for High Energy Density of the Russian Academy of Sciences, 127412, Izhorskaya St. 13/19, Moscow, Russia
Vladimir Evgenievich Fortov
Joint Institute of High Temperatures RAS, Russian Academy of Science, Moscow, Russia
Viktor Aleksandrovich Galburt
Research Center of High Energy Density, Russian Academy of Sciences
Semen Samoilovich Moiseev
Institute of Space Research, Russian Academy of Sciences
Oleg Grigorievich Onishchenko
Institute of Space Research, Russian Academy of Sciences

ABSTRACT

Methods of the nonlinear dynamics of plasma in a magnetic field are applied to the explanation of the formation of long-lived vortex structures in atmospheres of large planets caused by the fall of large meteorites. Evolutions of perturbations in the Jupiter's atmosphere, which are formed due to collisions with large fragments of the Shoemaker—Levy 9 comet, are considered as an example. A mechanism is proposed that explains the observable vortex structure, power characteristics, and linear dimensions of traces produced by interaction of the comet debris with the atmosphere. Simplified equations of the evolution of large-scale vortices in shallow, horizontally nonuniform atmosphere are derived that take into account (latitude) irregularities of a zonal wind and effects of viscosity and thermoconductivity. It is shown that the evolution of vortex structure essentially depends on the velocity field of the zonal wind in the area where a fragment of the comet falls. The threshold energy of initial perturbation is estimated, at which large-scale, long-lived vortices start to arise.


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