APPLICATION OF LASER SHLIEREN METHOD FOR MEASURMENT OF SHOCK FRONT STRUCTURE IN HELIUM WITH SMALL ADMIXTURE OF HEAVY MOLTCULES
Abstract
Change in the gradient of gas density in the shock wave front in He containing (0.1 - 1.0)%Xe is measured using the laser schlieren method in the range of Mach numbers M = (2.8 - 3.1) at equilibrium pressures behind the shock front P = (0.4 - 0.6) atm. It is found that the length of the shock front in this range increases linearly with the concentration of Xe.
Keywords
фронт ударной волны,
градиент плотности,
пространственное разрешение,
неравновесная функция распределения энергии парных соударений,
зона поступательной релаксации,
shock wave front,
density gradient,
space resolution,
nonequilibrium distribution function of binary collisions energy,
translation relaxation zone
About the Authors
V. . Ziborov
Joint Institute for High Temperatures of RAS (JIHT)
Russian Federation
Russian Federation
R. . Galiullin
Joint Institute for High Temperatures of RAS (JIHT); ООО «Resonansь»
Russian Federation
Russian Federation
V. . Efremov
Joint Institute for High Temperatures of RAS (JIHT)
Russian Federation
Russian Federation
V. . Shumova
Joint Institute for High Temperatures of RAS (JIHT)
Russian Federation
Russian Federation
V. . Fortov
Joint Institute for High Temperatures of RAS (JIHT)
Russian Federation
Russian Federation
References
1. Зиборов В.С., Ефремов В.П., Фортов В.Е. Эффект ионизации во фронте слабой ударной волны, распространяющейся в инертном газе, разбавленном малой концентрацией Мо(СО)6 // Письма в ЖЭТФ, 2007б Т. 86, №3, с. 211-215.
2. Ziborov V.S., Efremov V.P., Shumova V.V., Fortov V.E. The structure of shock wave front in helium containing the small concentration of the heavy molecules Mo(CO)6.// ISIS -18, Proc., Rouen 2008 pp. 165-169
3. Зиборов В.С. Методы и техника исследования ударных волн и плазмы за ударными волнами // Энциклопедия низкотемпературной плазмы под ред. Колесникова В.Н., Москва, ЯНУС-К, 2006, стр.88-135
4. Kiefer J., in Shock Waves in Chemistry, Ed. by A. Lifshitz (Marcel Dekker, New York, 1981), p. 219
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