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Re-forming supercritical quasi-parallel shocks. I - One- and two-dimensional simulationsThe process of reforming supercritical quasi-parallel shocks is investigated using one-dimensional and two-dimensional hybrid (particle ion, massless fluid electron) simulations both of shocks and of simpler two-stream interactions. It is found that the supercritical quasi-parallel shock is not steady. Instread of a well-defined shock ramp between upstream and downstream states that remains at a fixed position in the flow, the ramp periodically steepens, broadens, and then reforms upstream of its former position. It is concluded that the wave generation process is localized at the shock ramp and that the reformation process proceeds in the absence of upstream perturbations intersecting the shock.
Document ID
19910030159
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Thomas, V. A.
(Los Alamos National Lab. NM, United States)
Winske, D.
(Los Alamos National Laboratory NM, United States)
Omidi, N.
(California, University San Diego, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: Journal of Geophysical Research
Volume: 95
ISSN: 0148-0227
Subject Category
Plasma Physics
Accession Number
91A14782
Distribution Limits
Public
Copyright
Other

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