Japan Geoscience Union Meeting 2019

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[J] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM17] Space Plasma Physics: Theory and Simulation

Thu. May 30, 2019 1:45 PM - 3:15 PM A03 (TOKYO BAY MAKUHARI HALL)

convener:Takayuki Umeda(Institute for Space-Earth Environmental Research, Nagoya University), Takanobu Amano(Department of Earth and Planetary Science, University of Tokyo), Yasuhiro Nariyuki(Faculty of Human Development, University of Toyama), Tadas Nakamura(Fukui Prefectural University), Chairperson:Takayuki Umeda(Institute for Space-Earth Environmental Research, Nagoya University), Takanobu Amano(Department of Earth and Planetary Science, University of Tokyo)

2:00 PM - 2:15 PM

[PEM17-02] Multiple Boris integrators for particle-in-cell simulation

*Seiji Zenitani1, Tsunehiko N Kato2 (1.Kyoto University, 2.National Astronomical Observatory of Japan)

Keywords:Particle-in-Cell (PIC) simulation, Numerical scheme, Boris integrator

We construct Boris-type schemes for integrating the gyration of charged particles in particle-in-cell (PIC) simulation. The new solvers virtually combine the classic 2-step Boris solver arbitrary n times, and then they provide n2 times smaller errors. We derive a single-step form of the multiple Boris solvers, whose coefficients are given by polynomials. We carry out numerical tests of the new solvers, in comparison with other particle integrators.