Abstract

The two-dimensional electrogasdynamic problem of anomalous glow discharge on the surface of a sharp plate in supersonic flow of a perfect gas is solved using the system of Navier–Stokes equations to describe thermogasdynamic processes in the boundary layer and the two-temperature two-fluid diffusion-drift model of gas-discharge plasma to determine the electrodynamic structure of the discharge. The near-electrode regions of space charge and the external electrical circuit consisting of a power source and an ohmic resistance are taken into account. The influence of the magnetic field which is transverse to gas flow and has the induction of up to 0.03 T on the structure of boundary layer and glow discharge is studied. The electrogasdynamic structure of anomalous near-surface discharges is studied numerically over a wide range of gas flow velocities (M = 5–20), the free-stream pressures (p = 0.6–5 Torr), the electrode voltages, and the electric currents through the discharges. The electrodynamic structure of the gas-plasma flow near the electrodes and the effect of the glow discharge on the pressure and temperature distributions along the surface of the plate are also studied.

中文翻译：

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超音速气流中表面辉光放电的扩散漂移模型

摘要

利用纳维-斯托克斯方程组描述边界层和两温两流体的热气动力学过程，解决了理想气体超音速流动中锐板表面反常辉光放电的二维电气动力学问题。气体放电等离子体的扩散漂移模型，以确定放电的电动结构。考虑了空间电荷的近电极区域以及由电源和欧姆电阻组成的外部电路。研究了感应强度高达0.03T的横向气流磁场对边界层结构和辉光放电的影响。在较宽的气流速度 (M = 5–20)、自由流压力 ( p = 0.6–5 Torr)、电极电压和电流范围内对异常近表面放电的电气动力学结构进行数值研究通过放电。还研究了电极附近气体等离子体流的电动结构以及辉光放电对沿板表面的压力和温度分布的影响。