Abstract
The electrodynamic structure of an anomalous glow discharge between two plane electrodes located on the surface of a sharp plate in supersonic flow of molecular nitrogen is studied numerically in a wide range of Mach numbers using a modified ambipolar model of quasi-neutral electric-discharge plasma. The ambipolar diffusion coefficient and the effective ionization rate are modified while taking into account the external magnetic field. The problem is solved in the two-dimensional x–y formulation, when the external magnetic field strength is directed in the positive or negative direction of the z axis. The parameters of anomalous glow discharge are numerically studied in the pressure range p = 0.14–5 Torr and the voltage drops on the quasineutral current column of discharge plasma V = 30–320 V. The main problem parameters which make it possible to obtain a reasonable agreement with the available experimental data are determined.
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This work was supported by the Russian Science Foundation (grant no. 22-11-00062).
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Translated by E.A. Pushkar
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Surzhikov, S.T. Supersonic Flow past a Sharp Plate with Surface Anomalous Glow Discharge in a Magnetic Field. Fluid Dyn 58, 1110–1133 (2023). https://doi.org/10.1134/S0015462823601985
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DOI: https://doi.org/10.1134/S0015462823601985