Volume 132, Number 6, December 2020
|Number of page(s)||6|
|Section||Physics of Gases, Plasmas and Electric Discharges|
|Published online||01 March 2021|
Plasma slab expansion into vacuum
Institute of Spectroscopy, Russian Academy of Sciences - Troitsk, Moscow, 108840, Russia and Moscow Institute of Physics and Technology - Institutsky lane 9, Dolgoprudny, Moscow region, 141701, Russia
Received: 10 July 2020
Accepted: 16 November 2020
The problem of collisionless plasma slab expansion into vacuum is solved within a two-temperature hydrodynamic approximation in the dispersionless limit of zero Debye radius. In the framework of such an approach, the solution by the Riemann method provides a quite accurate description of the whole process of plasma dynamics. It is shown that the dispersionless approximation agrees very well with exact numerical solution of the full system of plasma hydrodynamic equations.
PACS: 52.30.-q – Plasma dynamics and flow / 52.35.Mw – Nonlinear phenomena: waves, wave propagation, and other interactions (including parametric effects, mode coupling, ponderomotive effects, etc.) / 52.38.Kd – Laser-plasma acceleration of electrons and ions
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