Nonlinear dynamics of the m=1 instability and fast sawtooth collapse in high-temperature plasmas.
Nonlinear dynamics of the m=1 instability and fast sawtooth collapse in high-temperature plasmas.
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DOI：
10.1103/physrevlett.70.1627
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发表时间：
1993-03
影响因子：
8.6
通讯作者：
Xiaogang Wang;A. Bhattacharjee
中科院分区：
文献类型：
--
作者：
Xiaogang Wang;A. Bhattacharjee
一个理论给出的非线性动力学演化的[ital m]=1不稳定性，由广义欧姆定律，包括霍尔项。一个岛屿方程推导出整个非线性演化，其中包括一个几乎爆炸性的增长阶段，随后是一个快速衰减阶段。理论的预测与最近的数值结果和实验进行了比较。
A theory is given for the nonlinear dynamical evolution of the [ital m]=1 instability, governed by a generalized Ohm's law that includes the Hall term. An island equation is derived for the entire nonlinear evolution which includes an almost explosive growth phase followed by a rapid decay phase. The predictions of the theory are compared with recent numerical results and experiments.