Forced magnetic reconnection in the inviscid Taylor problem
Forced magnetic reconnection in the inviscid Taylor problem
复制标题
无粘泰勒问题中的强制磁重联
DOI：
10.1063/1.1756587
复制
发表时间：
2003
影响因子：
2.2
通讯作者：
R. Fitzpatrick
中科院分区：
文献类型：
--
作者：
A. Cole;R. Fitzpatrick
为了研究一个著名的强迫磁场重联模型，数值推导了不可压缩无粘二维磁流体力学方程。这个问题，被称为泰勒问题，考虑了撕裂稳定平板等离子体平衡的响应突然，小幅度的边界扰动。所施加的扰动是这样的，以迫使磁重联和随后的磁岛形成等离子体内。研究了重联过程的早期动力学阶段，发现与Hahm和Kulsrud [Phys.Fluids28，2412（1985）]的分析预测吻合得很好。最近Ishizawa和Tokuda [Phys.Plasmas 8，376（2001）]对这一分析的批评是没有根据的。
The equations of incompressible inviscid two-dimensional MHD (magnetohydrodynamics) are numerically evolved in order to study a well-known model of forced magnetic reconnection. This problem, known as the Taylor problem, considers the response of a tearing-stable slab plasma equilibrium to a sudden, small amplitude boundary perturbation. The applied perturbation is such as to force magnetic reconnection and subsequent magnetic island formation within the plasma. The early dynamical phases of the reconnection process are investigated and found to be in good agreement with the analytic predictions of Hahm and Kulsrud [Phys. Fluids 28, 2412 (1985)]. Recent criticisms of this analysis by Ishizawa and Tokuda [Phys. Plasmas 8, 376 (2001)] are shown to be unwarranted.