Computer Science
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36..753g&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 36, Aug. 1988, p. 753-764.
Computer Science
17
Hydrodynamic Equations, Polar Regions, Positive Ions, Space Plasmas, Drift Rate, Hydrogen Plasma, Ion Motion, Oxygen Plasma, Supersonic Flow, Temporal Distribution, Vertical Distribution
Scientific paper
The temporal characteristics of the polar wind have been studied using a simplified set of collisionless equations and a full set of hydrodynamic equations which contained continuity, momentum, and energy equations for H(+), O(+), and electrons, including collisional conductivities and variable isotropic, ion and electron temperatures. The temporal evolution of the polar wind was modeled for initial, extended density depletions of factors of 3, 10, and 100 starting at several altitudes for each model. Comparison of the results from the two models showed the same temporal characteristics for the polar wind densities, flow velocities, and escape fluxes. The characteristics of plasma expansion are presented. It is found that the propagation velocities of the disturbance vary with the level of the depletion.
Gombosi Tamas I.
Schunk Robert W.
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