Dynamics of Radiation from Nanosecond Surface Sliding Discharge in Airflow with Shock Waves
- Authors: Kuznetsov A.Y.1, Mursenkova I.V.1, Ulanov P.Y.1
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Affiliations:
- Faculty of Physics, Moscow State University
- Issue: Vol 45, No 12 (2019)
- Pages: 1266-1269
- Section: Article
- URL: https://bakhtiniada.ru/1063-7850/article/view/208518
- DOI: https://doi.org/10.1134/S1063785019120228
- ID: 208518
Cite item
Abstract
Spatio-temporal distributions of radiation from pulsed sliding surface discharge of ~300-ns duration in quiescent air at pressures within 2–200 Torr and in the presence of shock waves in supersonic flow with Mach numbers M = 2.8–3.3 have been experimentally studied. The dynamics of radiation from discharge was analyzed based on processing of the streak images and nine-frame images of discharge glow intensity, emission spectra, and discharge current kinetics. It is established that variation of the radiation intensity from discharge interacting with shock waves is correlated with a model temporal dependence of the population of C3Πu states of nitrogen during shock compression of the discharge plasma region.
About the authors
A. Yu. Kuznetsov
Faculty of Physics, Moscow State University
Author for correspondence.
Email: kuznecov.alexander15@gmail.com
Russian Federation, Moscow, 119992
I. V. Mursenkova
Faculty of Physics, Moscow State University
Email: kuznecov.alexander15@gmail.com
Russian Federation, Moscow, 119992
P. Yu. Ulanov
Faculty of Physics, Moscow State University
Email: kuznecov.alexander15@gmail.com
Russian Federation, Moscow, 119992
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