Japan Geoscience Union Meeting 2018

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[JJ] Oral

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

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

Wed. May 23, 2018 10:45 AM - 12:15 PM 304 (3F International Conference Hall, Makuhari Messe)

convener:Takayuki Umeda(Institute for Space-Earth Environmental Research, Nagoya University), Yohei Miyake(Education Center on Computational Science and Engineering, Kobe University), Yasuhiro Nariyuki(富山大学人間発達科学部, 共同), Tadas Nakamura(Fukui Prefectural University), Chairperson:Nakamura Tadas(Fukui Prefectural University), Amano Takanobu(Department of Earth and Planetary Science, University of Tokyo)

11:45 AM - 12:00 PM

[PEM17-11] Numerical modeling of plasma detachment

*Tohru Hada1,2 (1.Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 2.International Center for Space Weather Science and Education, Kyushu University)

Keywords:plasma detachment, numerical model

Plasma detachment we consider here is a process where an accelerated plasma escapes into free space, being free from magnetic field trapping. It is one of the central issues of electric thrusters since no thrust will be obtained if the plasma remains guided by the strong magnetic field generated around the thruster. Due to sharp contrast of both in the plasma density and the magnetic field near the thruster and far away, it is technically difficult to apply usual PIC code to simulate this problem. In this presentation, we will propose a new hybrid type numerical scheme to compute the plasma detachment. Results will be discussed referring to the solar wind acceleration.