Physics
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993pdl..confq....m&link_type=abstract
AIAA, Plasmadynamics and Lasers Conference, 24th, Orlando, FL, July 6-9, 1993, 12 p.
Physics
Ionopause, Magnetohydrodynamics, Pioneer Venus Spacecraft, Solar Planetary Interactions, Solar Wind, Venus (Planet), Continuity Equation, Daytime, Maxwell Equation, Photoionization
Scientific paper
A 2-D MHD code of the solar wind flow around the dayside of Venus is presented. This method is shown to be appropriate for investigating first-order effects on the flowfield resulting from modifications in boundary conditions and physical phenomena such as mass loading. Mass loading, due to the pickup of oxygen ions by the solar wind flow, is modeled as a source term in the continuity equation. Numerical simulations are carried out for a range of source rates to study changes in the calculated flowfields; for oxygen ion production rates larger than approximately 2 x 10 exp 5/sq m per sec, boundary layers of finite thickness form along the ionopause boundary. These results are new and in agreement with Pioneer Venus measurements. For the upstream solar wind parameters and mass loading rates chosen for these simulations, the results are consistent with observations made on the dayside of Venus for average ionopause conditions.
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