Structure of Shock Wave in Oxygen

The results of numerical study of relaxation processes in oxygen at high temperatures are presented. Collisions of particles (atoms and molecules) are described by the molecular dynamics methods based on trajectory calculations within the framework of classical mechanics. A complex of programs for c...

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Bibliographic Details
Published in:Fluid dynamics 2023-06, Vol.58 (3), p.427-437
Main Authors: Erofeev, A. I., Rusakov, S. V.
Format: Article
Language:English
Subjects:
Atomic recombination
Classical and Continuum Physics
Classical Mechanics
Dissociation
Engineering Fluid Dynamics
Fluid- and Aerodynamics
High temperature gases
Mixtures
Molecular dynamics
Oxygen
Physics
Physics and Astronomy
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Summary:The results of numerical study of relaxation processes in oxygen at high temperatures are presented. Collisions of particles (atoms and molecules) are described by the molecular dynamics methods based on trajectory calculations within the framework of classical mechanics. A complex of programs for calculating the relaxation processes in mixtures of high-temperature gases involving internal modes that describe rotational and vibrational motions in molecules and molecular dissociation and atomic recombination in the presence of a third body is described. The relaxation process is described with reference to variation in the parameters in a mixture of atomic and molecular oxygen with various initial temperatures of the translational and internal modes. The results of calculations of the structure of shock wave in oxygen with the maximum translational temperature on the front higher than 5000–11 000 K are given. The results obtained are compared with experimental data.
ISSN:0015-4628
1573-8507
DOI:10.1134/S0015462823600189