DOI: https://doi.org/10.26089/NumMet.v25r432

On numerical simulation of plasma oscillations taking into account non-standard viscosity

Authors

  • Olga S. Rozanova
  • Evgenii V. Chizhonkov

Keywords:

numerical simulation
non-relativistic oscillations
non-standard viscosity
implicit McCormack scheme
traveling waves

Abstract

The effect of non-standard viscosity on non-relativistic oscillations of cold plasma is numerically analyzed. The non-standard viscosity can be interpreted as a consequence of low electron heating when using the barotropic model. An implicit McCormack-type difference scheme has been constructed for calculations, which has a weaker stability constraint than the explicit scheme and is implemented without iterations, which increases its computational efficiency tenfold. It is shown that taking into account the non-standard viscosity of the plasma can be the reason for the formation of traveling waves of the soliton type.

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Published

2024-10-27

Issue

Vol. 25 (2024): Issue 4.

Section

Methods and algorithms of computational mathematics and their applications

Author Biographies

Olga S. Rozanova

Lomonosov Moscow State University,
Faculty of Mechanics and Mathematics
• Professor

Evgenii V. Chizhonkov

Lomonosov Moscow State University,
Faculty of Mechanics and Mathematics
• Professor

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