论文标题
碰撞等离子体实验中垂直亚临界休克结构
Perpendicular subcritical shock structure in a collisional plasma experiment
论文作者
论文摘要
我们介绍了碰撞实验室血浆中垂直亚临界冲击的研究。通过将障碍物放入逆线阵列z固定阵列中的超磁体流出中来产生冲击。我们证明了该制度中的亚临界冲击的存在，并发现下游中的次要冲击形成。亚临界冲击结构的详细测量确认没有流体动力跳跃。我们计算经典（Spitzer）电阻扩散长度，并表明它大约等于电击宽度。我们测量在冲击中几乎没有加热（<10％的离子动能），这与没有粘性耗散一致。
We present a study of perpendicular subcritical shocks in a collisional laboratory plasma. Shocks are produced by placing obstacles into the super-magnetosonic outflow from an inverse wire array z-pinch. We demonstrate the existence of subcritical shocks in this regime and find that secondary shocks form in the downstream. Detailed measurements of the subcritical shock structure confirm the absence of a hydrodynamic jump. We calculate the classical (Spitzer) resistive diffusion length and show that it is approximately equal to the shock width. We measure little heating across the shock (< 10 % of the ion kinetic energy) which is consistent with an absence of viscous dissipation.
