Computer Science – Numerical Analysis
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991sri..reptq....s&link_type=abstract
Final Report, 25 May 1990 - 25 Nov. 1991 Southwest Research Inst., San Antonio, TX.
Computer Science
Numerical Analysis
Computerized Simulation, Magnetohydrodynamics, Numerical Analysis, Shock Wave Propagation, Shock Waves, Stellar Mass Ejection, Wave Interaction, Coronagraphs, Coronas, Magnetohydrodynamic Waves, Nonlinear Equations, Polarimetry
Scientific paper
The primary objective of this research program is the study of the magnetohydrodynamic (MHD) shocks and nonlinear simple waves produced as a result of the interaction of ejected lower coronal plasma with the ambient corona. The types of shocks and nonlinear simple waves produced for representative coronal conditions and disturbance velocities were determined. The wave system and the interactions between the ejecta and ambient corona were studied using both analytic theory and numerical solutions of the time-dependent, nonlinear MHD equations. Observations from the SMM coronagraph/polarimeter provided both guidance and motivation and are used extensively in evaluating the results. As a natural consequence of the comparisons with the data, the simulations assisted in better understanding the physical interactions in coronal mass ejections (CME's).
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