Physics
Scientific paper
Nov 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....9518821w&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, Nov. 1, 1990, p. 18821-18832. Research supported by DOE, NASA and DNA
Physics
56
Interface Stability, Shock Fronts, Shock Wave Generators, Supercritical Flow, Wave Generation, Ion Currents, Shock Wave Interaction
Scientific paper
This paper continues the study of Thomas et al. (1990) in which hybrid simulations of quasi-parallel shocks were performed in one and two spatial dimensions. To identify the wave generation processes, the electromagnetic structure of the shock is examined by performing a number of one-dimensional hybrid simulations of quasi-parallel shocks for various upstream conditions. In addition, numerical experiments were carried out in which the backstreaming ions were removed from calculations to show their fundamental importance in reformation process. The calculations show that the waves are excited before ions can propagate far enough upstream to generate resonant modes. At some later times, the waves are regenerated at the leading edge of the interface, with properties like those of their initial interactions.
Omidi Nojan
Quest Kevin B.
Thomas Anne V.
Winske Dan
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