Open AccessДинамика излучения наносекундного поверхностного скользящего разряда в потоке с ударной волной
Author(s) -
А.Ю. Кузнецов,
И.В. Мурсенкова,
П.Ю. Уланов
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.24.48804.17924
Subject(s) - shock wave , radiation , mach number , shock (circulatory) , atomic physics , streak , population , spectral line , plasma , torr , physics , materials science , optics , mechanics , medicine , demography , quantum mechanics , astronomy , sociology , thermodynamics
The spatio-temporal distribution of the radiation of the surface sliding discharge with a duration of ~ 300 ns in stationary air at pressures of 2–200 Torr and under the interaction with plane shock waves at Mach numbers 2.8-3.3 was experimentally studied. The dynamics of the discharge radiation based on the processing of streak images and 9-frame images of the glow, the spectra of the radiation, and the discharge current are analyzed. It is shown that the dependence of the radiation intensity of the discharge interacting with the shock wave correlates with the simulated time dependence of the population of the C3Πu state of nitrogen under shock compression of the plasma region.