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Experimental Study of Gas Radiation Behind the Front of a Strong Shock Wave Argon
Abstract
The emission spectra of argon behind the front of a strong shock wave are studied in the range of shock wave velocities of 4.6-8.3 km/s and pressures before a wave front of 0.25-5.00 Torr are presented. Time-integrated sweeps of radiation in a wide spectral range from ultraviolet to infrared (190—1100 nm) as well as time dependences of the intensity of argon radiation at wavelengths of 420, 532.8, and 740 nm are obtained. Three characteristic stages of temporal evolution of line emission are defined. The dependence of the duration of the emission of lines and its intensity on the initial pressure of gas and velocity of shock wave is established. Data are obtained on intensity of background radiation, which can be used to separate intensity of certain lines of argon atom from the total radiation.
About the Authors
P. V. Kozlov
Institute of Mechanics, M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119192
I. E. Zabelinsky
Institute of Mechanics, M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119192
N. G. Bikova
Institute of Mechanics, M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119192
V. Yu. Levashov
Institute of Mechanics, M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119192
G. Ya. Gerasimov
Institute of Mechanics, M.V. Lomonosov Moscow State University
Russian Federation
Russian Federation
Moscow, 119192
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Review
For citations:
Kozlov P.V., Zabelinsky I.E., Bikova N.G., Levashov V.Yu., Gerasimov G.Ya. Experimental Study of Gas Radiation Behind the Front of a Strong Shock Wave Argon. Zhurnal Prikladnoii Spektroskopii. 2021;88(2):244-248. (In Russ.)
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