Cauvet Q, Bernecker B, Bouquet S, Canaud B, Hermeline F, Pichon S
CEA, DAM, DIF, 91297 Arpajon, France.
Phys Rev E. 2022 Jun;105(6-2):065205. doi: 10.1103/PhysRevE.105.065205.
Goncharov's [Phys. Rev. Lett. 88, 134502 (2002)0031-900710.1103/PhysRevLett.88.134502] nonlinear model of a single-mode Rayleigh-Taylor instability (RTI) is investigated for a partially ionized plasma in a predominantly neutral background. Terminal bubble and spike velocities are derived from the nonlinear equations in the case where the RTI dynamics is dominated by collisions between neutrals and ions. Direct numerical simulations are used to justify the use of Goncharov's model in this regime and observe its limitations.
针对主要为中性背景下的部分电离等离子体，研究了贡恰罗夫[《物理评论快报》88, 134502 (2002)0031 - 900710.1103/PhysRevLett.88.134502]的单模瑞利 - 泰勒不稳定性（RTI）非线性模型。在中性粒子与离子间碰撞主导RTI动力学的情况下，从非线性方程推导出终态气泡和尖峰速度。使用直接数值模拟来验证贡恰罗夫模型在此情况下的适用性并观察其局限性。
