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Dynamics of Radiation from Nanosecond Surface Sliding Discharge in Airflow with Shock Waves
Technical Physics Letters ( IF 0.8 ) Pub Date : 2020-01-09 , DOI: 10.1134/s1063785019120228 A. Yu. Kuznetsov , I. V. Mursenkova , P. Yu. Ulanov
中文翻译:
冲击波对气流中纳秒表面滑动放电的辐射动力学
更新日期:2020-01-09
Technical Physics Letters ( IF 0.8 ) Pub Date : 2020-01-09 , DOI: 10.1134/s1063785019120228 A. Yu. Kuznetsov , I. V. Mursenkova , P. Yu. Ulanov
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.中文翻译:
冲击波对气流中纳秒表面滑动放电的辐射动力学