New developments in algorithms and verification in the particle-in-cell code XGC

ORAL

Abstract

Recent algorithm developments for electrostatic and electromagnetic simulations in the edge gyrokinetic code XGC1 will be reported, together with their verification activities. Topics to be discussed include Lagrangian-Eulerian hybrid algorithm, fully nonlinear multispecies Fokker-Planck collision algorithm, and implicit electromagnetic simulation algorithm. These developments enabled study of edge blobby turbulence, divertor heat-flux width, edge transport bifurcation, electromagnetic instabilities, RMP physics, etc. on extreme scale computers, which would have been difficult otherwise.

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Authors

  • C.S. Chang

    Princeton Plasma Physics Laboratory, Princeton Plasma Physics Lab, PPPL, Princeton University

  • S. Ku

    Princeton Plasma Physics Laboratory, Princeton Plasma Physics Lab, PPPL

  • Robert Hager

    Princeton Plasma Physics Laboratory, Princeton Plasma Physics Lab, PPPL, Princeton University

  • Scott Parker

    University of Colorado, Boulder, CO, University of Colorado, Boulder, University of Colorado, U. Colorado Boulder, University of Colorado at Boulder

  • Y. Chen

    University of Colorado, Boulder, CO, U. Colorado Boulder

  • E. Yoon

    Rensselaer Polytech Institute, RPI, U. Colorado Boulder