Hall magnetohydrodynamic reconnection: The Geospace Environment Modeling challenge
Hall magnetohydrodynamic reconnection: The Geospace Environment Modeling challenge
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DOI：
10.1029/1999ja001004
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发表时间：
2001-03-01
影响因子：
2.8
通讯作者：
Bhattacharjee, A
中科院分区：
文献类型：
--
作者：
Ma, ZW;Bhattacharjee, A
本文介绍了爱荷华州大学霍尔磁流体动力学（MHD）程序的地球空间环境模型（GEM）重连挑战（及其变体）的数值结果。在这项研究中，电阻率提供了破坏场线的机制。结果表明，在准饱和状态下，重联率峰值主要受离子控制，对电阻率的依赖性很弱。的重联率是接近从其他粒子在细胞中，混合动力，霍尔MHD代码。讨论了UI Hall MHD程序与其它程序计算结果的差异。
Numerical results are presented on the Geospace Environment Modeling (GEM) reconnection challenge (and its variants) from the Hall magnetohydrodynamics (MHD) code developed at the University of Iowa (UI). Resistivity provides the mechanism for breaking field lines in this study. It is shown that the peak reconnection rate in the quasi-saturated regime is controlled dominantly by ions and has a weak dependence on the resistivity. The reconnection rate is close to those obtained from other particle-in-cell, hybrid, and Hall MHD codes. Some differences between the results from the UI Hall MHD code and other codes are discussed.