Physics – Plasma Physics
Scientific paper
May 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ppcn.conf..281h&link_type=abstract
In ESA, Fourth International Toki Conference on Plasma Physics and Controlled Nuclear Fusion p 281-284 (SEE N94-22624 05-75)
Physics
Plasma Physics
Computerized Simulation, Magnetohydrodynamic Stability, Magnetohydrodynamic Waves, Plasma Turbulence, Solitary Waves, Earth Ionosphere, Laser Plasma Interactions, Plasma Control, Two Dimensional Models
Scientific paper
A two dimensional simulation of a soliton instability in a weakly magnetized plasma is performed. The Zakharov model of strong Langmuir turbulence is applied. Growth rate spectra are calculated. The suppression of magnetic field effect with a growing soliton strength is shown. Nonlinear frequency shift and spectral broadening are observed, already in an early stage. A realistic vectorial form of the basic equations accounting for full ion dynamics valid for both small and large amplitude Langmuir solitons is applied. In order to check linear eigenvalue results, focus is put on the early exponentially growing instability stage.
Hadzievski L. R.
Škorić Miloš M.
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