Planetary-Scale Vortical Structures in the Conducting Atmosphere
نویسنده
چکیده
The problem of generation and existence of large-scale vortices in the ionosphere is analyzed in this paper. Some exact solutions of the magneto-hydrodynamic (MHD) equations have been found and new invariants have been constructed allowing to descover mechanisms of generation of large-scale vortices and planetary waves in the electroconducting atmosphere under the action of non-conservative Coriolis and Ampere forces.
منابع مشابه
Describing two - dimensional vortical flows : the typhoon case
We present results of a numerical study of the differential equation governing the stationary states of the two-dimensional planetary atmosphere and magnetized plasma (within the Charney Hasegawa Mima model). The most strinking result is that the equation appears to be able to reproduce the main features of the flow structure of a typhoon.
متن کاملJournal of Geophysical Research: Atmospheres Mars’ atmosphere: The sister planet, our statistical twin
Satellite-based Martian reanalyses have allowed unprecedented comparisons between our atmosphere and that of our sister planet, underlining various similarities and differences in their respective dynamics. Yet by focusing on large scale structures and deterministic mechanisms they have improved our understanding of the dynamics only over fairly narrow ranges of (near) planetary scales. However...
متن کاملOn Signatures of Atmospheric Features in Thermal Phase Curves of Hot Jupiters
Turbulence is ubiquitous in Solar System planetary atmospheres. In hot Jupiter atmospheres, the combination of moderately slow rotation and thick pressure scale height may result in dynamical weather structures with unusually large, planetary-size scales. Using equivalent-barotropic, turbulent circulation models, we illustrate how such structures can generate a variety of features in the therma...
متن کاملSimulations of Atmospheric General Circulations of Earth-like Planets by AFES
For the purpose of acquiring insights into the physical processes characterizing dynamical structures of general circulations of the planetary atmospheres, high resolution simulations of the Martian global atmosphere and the aqua-planet atmosphere which is an abstraction of the Earth's atmosphere have been performed by using GCMs (General Circulation Model) based on the AFES (Atmospheric GCM fo...
متن کاملThe Vortical Structures in the Rear Separation and Wake Produced by a Supersonic Micro-Ramp
The vortical structures in the rear separation and wake region produced by a micro-ramp that immersed in a supersonic turbulent boundary layer are investigated. The small scale separation was reveled close to the trailing edge and confirms the previous experimental observation. Between the reverse region and surrounding fast moving flow, a three-dimensional shear layer was formed, where vortice...
متن کامل