Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Numerical simulation of hypersonic flow with non-equilibrium chemical reactions around sphere. / Dobrov, Yury; Gimadiev, Vladislav; Karpenko, Anton; Volkov, Konstantin.
в: Acta Astronautica, 14.10.2021.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Numerical simulation of hypersonic flow with non-equilibrium chemical reactions around sphere
AU - Dobrov, Yury
AU - Gimadiev, Vladislav
AU - Karpenko, Anton
AU - Volkov, Konstantin
N1 - Publisher Copyright: © 2021 IAA
PY - 2021/10/14
Y1 - 2021/10/14
N2 - High-temperature effects have a significant impact on the characteristics of aircraft moving at super- and hypersonic speeds. Due to the complexity of setting up a physical experiment, methods of mathematical modelling play an important role in finding the characteristics of hypersonic aircraft. Numerical modelling of super- and hypersonic air flow around the sphere is carried out taking into account high-temperature effects and non-equilibrium chemical reactions. The mathematical model includes equations of gas dynamics, equations of the turbulence model and equations of chemical kinetics. A critical review of the various models that are used to find the stand-off distance is provided. The results of numerical calculations on the distribution of flow quantities in the shock layer and the stand-off distance at different freestream Mach numbers are presented. The results of numerical calculations in a wide range of freestream Mach numbers are compared with the experimental data and computational results of other researchers. Standoff distance is computed at various Mach number and heights during a flight in the atmosphere at hypersonic speed.
AB - High-temperature effects have a significant impact on the characteristics of aircraft moving at super- and hypersonic speeds. Due to the complexity of setting up a physical experiment, methods of mathematical modelling play an important role in finding the characteristics of hypersonic aircraft. Numerical modelling of super- and hypersonic air flow around the sphere is carried out taking into account high-temperature effects and non-equilibrium chemical reactions. The mathematical model includes equations of gas dynamics, equations of the turbulence model and equations of chemical kinetics. A critical review of the various models that are used to find the stand-off distance is provided. The results of numerical calculations on the distribution of flow quantities in the shock layer and the stand-off distance at different freestream Mach numbers are presented. The results of numerical calculations in a wide range of freestream Mach numbers are compared with the experimental data and computational results of other researchers. Standoff distance is computed at various Mach number and heights during a flight in the atmosphere at hypersonic speed.
KW - Chemical reactions
KW - Flight safety
KW - High-temperature effects
KW - Hypersonic flow
KW - Shock wave
KW - Sphere
UR - http://www.scopus.com/inward/record.url?scp=85118233718&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/ef0e643c-db7d-355b-bb77-b3b862c7fc7f/
U2 - 10.1016/j.actaastro.2021.10.008
DO - 10.1016/j.actaastro.2021.10.008
M3 - Article
AN - SCOPUS:85118233718
JO - Acta Astronautica
JF - Acta Astronautica
SN - 0094-5765
ER -
ID: 88450906