Enabling technology for global 3D + 3V hybrid-Vlasov simulations of near-Earth space

Research output: Contribution to journalArticleScientificpeer-review

Abstract

We present methods and algorithms that allow the Vlasiator code to run global, three-dimensional hybrid-Vlasov simulations of Earth's entire magnetosphere. The key ingredients that make Vlasov simulations at magnetospheric scales possible are the sparse velocity space implementation and spatial adaptive mesh refinement. We outline the algorithmic improvement of the semi-Lagrangian solver for six-dimensional phase space quantities, discuss the coupling of Vlasov and Maxwell equations' solvers in a refined mesh, and provide performance figures from simulation test runs that demonstrate the scalability of this simulation system to full magnetospheric runs.
Original languageEnglish
Article number042902
JournalPhysics of Plasmas
Volume30
Issue number4
Number of pages12
ISSN1070-664X
DOIs
Publication statusPublished - 13 Apr 2023
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 114 Physical sciences
  • Plasma Simulation
  • Magnetosphere
  • Vlasov Equation

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