On the structure of collisionless magneto—plasma shock waves at super—critical Alfvén—Mach numbers
On the structure of collisionless magneto—plasma shock waves at super—critical Alfvén—Mach numbers
复制标题
超临界阿尔文马赫数下无碰撞磁等离子体激波的结构
DOI：
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发表时间：
1969
影响因子：
2.5
通讯作者：
By L. C. Woods
中科院分区：
文献类型：
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作者：
By L. C. Woods
在磁等离子体中，离子被急剧上升的电势反射，垂直激波在磁场中形成一个宽的、小振幅的“脚”。给出了一个理论的结构，这表明它的形状是一个相当平坦的抛物线开始在大约一半的拉莫尔半径在前面的冲击波阵面适当的。该理论还预测了在急剧上升之前的脚的振幅作为阿尔文-马赫数的函数。与实验结果吻合较好。
Ions reflected from the sharp potential rise in a magneto-plasma, perpendicular shock wave result hi a broad, small-amplitude ‘foot’ in the magnetic field proffle. A theory is given for the structure of this foot, which shows its shape to be a rather flat parabolic curve commencing at about half a Larmor radius in front of the shock front proper. The theory also predicts the amplitude of the foot just in front of the sharp rise as a function of Alfvén—Mach number. Close agreement with experiment is found.