Computer Science – Sound
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977moon...17..409s&link_type=abstract
The Moon, vol. 17, Dec. 1977, p. 409-423.
Computer Science
Sound
Convective Flow, Earth Magnetosphere, Flow Distribution, Gas Dynamics, Magnetohydrodynamic Flow, One Dimensional Flow, Centrifugal Force, Equators, Plasma Pressure, Solar Corona, Solar Wind
Scientific paper
Two one-dimensional models of the plasma flow in the equatorial plane of the magnetosphere are examined: (1) a gasdynamical model in which the Ampere force is ignored and the solar-wind pressure on the layer of the return flow near the magnetopause is compensated by the centrifugal force and the plasma pressure inside the magnetosphere in the convection region, and (2) a magnetohydrodynamic model, in which the normal component of the Ampere force on the magnetopause is considered. There is a critical point analogous to that of transition through the velocity of sound in the Laval nozzle. The values of the thickness of the layer of the return flow, the velocity of convection, and the potential difference across the tail were calculated by these models and agree in order of magnitude with observational data.
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