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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 изданияхстатьяРецензирование

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@article{8461980959cd4c689c0f39a5db866aef,
title = "Numerical simulation of hypersonic flow with non-equilibrium chemical reactions around sphere",
abstract = "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.",
keywords = "Chemical reactions, Flight safety, High-temperature effects, Hypersonic flow, Shock wave, Sphere",
author = "Yury Dobrov and Vladislav Gimadiev and Anton Karpenko and Konstantin Volkov",
note = "Publisher Copyright: {\textcopyright} 2021 IAA",
year = "2021",
month = oct,
day = "14",
doi = "10.1016/j.actaastro.2021.10.008",
language = "English",
journal = "Acta Astronautica",
issn = "0094-5765",
publisher = "Elsevier",

}

RIS

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