Perfectly matched layers for radio wave propagation in inhomogeneous magnetized plasmas

  • Authors:

  • Natalia A. Gondarenko;Parvez N. Guzdar;Sidney L. Ossakow;Paul A. Bernhardt

  • Affiliations:

  • Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD;Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD;Plasma Physics Division, Naval Research Laboratory, Washington, DC;Plasma Physics Division, Naval Research Laboratory, Washington, DC

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2004

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Abstract

We present 1D and 2D numerical models of the propagation of high-frequency (HF) radio waves in inhomogeneous magnetized plasmas. The simulations allow one to describe the process of linear conversion of HF electromagnetic waves into electrostatic waves. The waves, launched from the lower boundary normally or at a specified angle on a layer of a magnetostrictive plasma, can undergo linear conversion of the incident O-mode into a Z-mode at appropriate locations in an inhomogeneous prescribed plasma density. The numerical scheme for solving 2D HF wave propagation equations is described. The model employed the Maxwellian perfectly matched layers (PML) technique for approximating nonreflecting boundary conditions. Our numerical studies demonstrate the effectiveness of the PML technique for transparent boundary conditions for an open-domain problem.