Effects of Hall Current in the Driven Reconnection with Various Scales
YANG Hong-Ang, JIN Shu-Ping
School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026
Effects of Hall Current in the Driven Reconnection with Various Scales
YANG Hong-Ang;JIN Shu-Ping
School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026
关键词 ：
95.30.Qd ,
52.65.Kj
Abstract ： In the driven reconnection process with various scales, the effect of Hall current is studied numerically using a Hall magnetohydrodynamics (MHD) code derived from a multi-step implicit scheme. In the cases with Lc /di ≤ 1.0 (Lc is the half-thickness of initial current layer, di is the ion inertial length), the features of Hall MHD reconnection are shown as follows: a quasi-steady single X-line reconnection is obtained, the By component with a quadrupolar structure is generated and the maximum reconnection rate is larger than 0.11. In the cases with Lc /di > 1.0, the effect of Hall current on the reconnection dynamics weakens and Hall MHD reconnection is gradually transformed into resistive MHD reconnection as Lc /di increases.
Key words ：
95.30.Qd
52.65.Kj
出版日期: 2004-07-01
:
95.30.Qd
(Magnetohydrodynamics and plasmas)
52.65.Kj
(Magnetohydrodynamic and fluid equation)
引用本文:
YANG Hong-Ang;JIN Shu-Ping. Effects of Hall Current in the Driven Reconnection with Various Scales[J]. 中国物理快报, 2004, 21(7): 1394-1397.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I7/1394
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