Problems of Radiative Gas Dynamics in the Fire-II Space Experiment

The results of a systematic numerical analysis of the experimental data of the Fire-II flight experiment and a consideration of the results of a computational study of the convective and radiative heating of the indicated experimental space experiment, taking the atomic lines of atoms and ions, usin...

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Bibliographic Details
Published in:Fluid dynamics 2022-12, Vol.57 (Suppl 2), p.S401-S452
Main Author: Surzhikov, S. T.
Format: Article
Language:English
Subjects:
Analysis
Classical and Continuum Physics
Classical Mechanics
Computational grids
Engineering Fluid Dynamics
Fluid- and Aerodynamics
Gas dynamics
High temperature gases
Mathematical analysis
Numerical analysis
Optical properties
Physics
Physics and Astronomy
Quantum mechanics
Thermal radiation
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Summary:The results of a systematic numerical analysis of the experimental data of the Fire-II flight experiment and a consideration of the results of a computational study of the convective and radiative heating of the indicated experimental space experiment, taking the atomic lines of atoms and ions, using the NERAT(2D) + ASTEROID computer platform into account, are presented. The specified computer platform is designed to solve the complete system of equations of radiative gas dynamics of a viscous, thermally conductive, physically and chemically nonequilibrium gas and radiative transport in two-dimensional geometry. The spectral optical properties of high-temperature gases have been calculated using ab-initio quasi-classical and quantum mechanical methods. The calculation of the transfer of selective thermal radiation was performed using the line-by-line method on specially generated computational grids along the radiation wavelength, which makes it possible to achieve significant savings in computing resources.
ISSN:0015-4628
1573-8507
DOI:10.1134/S0015462822100676