Dynamics of Radiation from Nanosecond Surface Sliding Discharge in Airflow with Shock Waves


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Аннотация

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.

Авторлар туралы

A. Kuznetsov

Faculty of Physics, Moscow State University

Хат алмасуға жауапты Автор.
Email: kuznecov.alexander15@gmail.com
Ресей, Moscow, 119992

I. Mursenkova

Faculty of Physics, Moscow State University

Email: kuznecov.alexander15@gmail.com
Ресей, Moscow, 119992

P. Ulanov

Faculty of Physics, Moscow State University

Email: kuznecov.alexander15@gmail.com
Ресей, Moscow, 119992

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