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Journal of Applied Mechanics and Technical Physics

2017 year, number 3

Numerical Estimation of Heterogeneous Reaction Constants in the Flow of Diluted Gas Through a Cylindrical Channel

M. Yu. Plotnikov1, E. V. Shkarupa2
1Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia
2Institute of Computational Mathematics and Mathematical Geophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
Keywords: разреженный газ, константы гетерогенных реакций, цилиндрический канал, прямое статистическое моделирование}, rarefied gas, heterogeneous reaction constants, cylindrical channel, direct statistical modeling


The direct statistical modeling method is used to study the influence of the coefficients of heterogeneous dissociation and recombination reactions on the flow of rarefied gas through a cylindrical channel. It is established that the degree of dissociation of the flow coming out of the channel is significantly dependent on the relationship between the dissociation and recombination coefficients. The technique for determining the dissociation and recombination coefficients on the basis of the experimental data is proposed.