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Journal Articles Physics of Plasmas Year : 2017

Emergence of MHD structures in a collisionless PIC simulation plasma

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1
M. E. Dieckmann
  • Function : Author
L. Romagnani
  • Function : Author
E. d'Humieres
  • Function : Author
A. Bret
  • Function : Author
T. Karlsson
  • Function : Author
A. Ynnerman
  • Function : Author

Abstract

The expansion of a dense plasma into a dilute plasma across an initially uniform perpendicular magnetic field is followed with a one-dimensional particle-in-cell simulation over magnetohydrodynamics time scales. The dense plasma expands in the form of a fast rarefaction wave. The accelerated dilute plasma becomes separated from the dense plasma by a tangential discontinuity at its back. A fast magnetosonic shock with the Mach number 1.5 forms at its front. Our simulation demonstrates how wave dispersion widens the shock transition layer into a train of nonlinear fast magnetosonic waves.

Dates and versions

insu-03710609 , version 1 (30-06-2022)

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M. E. Dieckmann, D. Folini, R. Walder, L. Romagnani, E. d'Humieres, et al.. Emergence of MHD structures in a collisionless PIC simulation plasma. Physics of Plasmas, 2017, 24, ⟨10.1063/1.4991702⟩. ⟨insu-03710609⟩
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