Grid-Free Particle Method for Electrostatic Plasmas

ORAL

Abstract

A grid-free particle method for electrostatic plasmas is presented. The method is based on the Lagrangian formulation of the Vlasov-Poisson equations in terms of the flow map of the charge distribution. We employ several numerical techniques including: (1) regularizing the Coulomb singularity, (2) adaptive particle insertion, and (3) a treecode algorithm to accelerate the evaluation of the electric field. Simulations are presented for the instability of collisionless electron beams.

*Supported by AFOSR

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Authors

  • Robert Krasny

    • University of Michigan

  • Lyudmyla Barannyk

    • University of Michigan

  • Benjamin Sonday

    • Princeton University

  • Christlieb Andrew

    • Michigan State University

  • Jing-Mei Qiu

    • Michigan State University