Parallel Propagation of Nonlinear Low‐Frequency Waves in High‐β Plasma
Parallel Propagation of Nonlinear Low‐Frequency Waves in High‐β Plasma
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DOI：
10.1063/1.1693399
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发表时间：
1971
影响因子：
4.6
通讯作者：
A. Rogister
中科院分区：
文献类型：
--
作者：
A. Rogister
得到了一对耦合的非线性偏微分方程组，它描述了在高β等离子体中平行或接近平行于平衡磁场传播的低频、大尺度长度微扰的演化。这些方程解释了不可逆共振粒子效应。在小但有限的传播角范围内，这对方程崩塌成一个单一的Korteweg-de Vries方程(忽略不可逆项)，这与已有的结果一致。
A pair of coupled, nonlinear, partial differential equations which describe the evolution of low‐frequency, large‐scale‐length perturbations propagating parallel, or nearly parallel, to the equilibrium magnetic field in high‐β plasma have been obtained. The equations account for irreversible resonant particle effects. In the regime of small but finite propagation angles, the pair of equations collapses into a single Korteweg‐de Vries equation (neglecting irreversible terms) which agrees with known results.