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Self-similar motions in Z-pinch dynamics

M.A. Liberman, A.L. Velikovich1986年被引用 38Nuclear FusionIF 3出版社

New self-similar solutions of the equations of ideal magnetohydrodynamics for a cylindrically symmetric plasma carrying an axial current are presented. They describe the collapse of shock waves and cavities (hollow plasma liners) on the axis, the outward propagation of shock waves reflected from the axis, inverse Z-pinch flows and related phenomena. The current sheaths at the outer plasma boundary can (and, in fact, should) be included explicitly in these solutions. A comparison of the self-similar solutions with calculations based on the snowplow model show the limits of validity of the latter.

日本語訳

理想的な磁気流体力学の方程式に対する新しい自己相似解を提示する。これらは、軸方向電流を担う円筒対称プラズマに関するものである。これらの解は、衝撃波と空洞(中空ライナー)の軸上への崩壊、軸から反射した衝撃波の外向き伝播、逆Zピンチ流れ、および関連する流れを記述する。外側プラズマ境界における電流シースは、これらの解に明示的に含めることができる(そして実際に含めるべきである)。自己相似解とスノープローモデルに基づく計算との比較は、後者の適用限界を示す。

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