Numerical study of energy conversion mechanism of magnetic reconnection in the presence of high guide field

S. Inoue, Y. Ono, H. Tanabe, R. Horiuchi, C. Z. Cheng

研究成果: Article同行評審

12 引文 斯高帕斯(Scopus)

摘要

The first two-dimensional particle in cell simulation of the reconnection region of two merging torus plasmas lead us to quantitative studies on the energy conversion mechanism under a high out-of-plane (guide) magnetic field condition. Even with the existence of the strong guide field, magnetic reconnection causes the efficient conversion of in-plane (poloidal) magnetic field energy. The ratio of the plasma kinetic energy flux of ions to that of electrons is roughly two to one, in agreement with the recent experimental results. Due to the suppression of nonlinear dynamics of ions motions in the vicinity of the reconnection region with guide field, the major energy flux of ions is changed to the flow energy flux. For electrons, a field-aligned acceleration caused by parallel electric field generates the non-thermal electrons through trapping (bouncing) effect, which is exhausted as the anisotropic energy flux of electrons. The inventory of the converted magnetic energy in the case with the guide field is quantitatively revealed.

原文English
文章編號083014
期刊Nuclear Fusion
55
發行號8
DOIs
出版狀態Published - 2015 八月 1

All Science Journal Classification (ASJC) codes

  • 核能與高能物理
  • 凝聚態物理學

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