Determination of the density of molecular flows falling on a body of arbitrary shape under conditions of free-molecular flow
https://doi.org/10.18384/2949-5067-2024-3-33-49
Abstract
Aim. The aim of this work was to develop an algorithm for determining the density of incident mass, momentum and energy flows on a body of complex shape, flown around by a highly rarefied gas.
Methodology. The work uses methods of the molecular-kinetic theory of gases, aimed at determining the macroscopic characteristics of a rarefied gas flow. The work is based on the numerical solution of integrals of the Maxwell distribution function.
Results. An algorithm has been developed and tested on a model simulating a device (solar battery panel, antenna, etc.) installed on the surface of a spacecraft body.
Research implications. The developed algorithm can be used in problems related to determining the distribution of mass, momentum and energy flow densities over the surface of objects flown around by a highly rarefied gas medium, and in problems related to determining the characteristics of a spacecraft's own external atmosphere.
Keywords
rarefied gas dynamics,
molecular kinetic theory of gases,
Maxwell distribution,
heat and
mass transfer in rarefied gases,
space factors
Supporting agencies: The work was carried out within the framework of the state assignment of the Ministry of Education and Science of the Russian Federation, topic number FSFF-2023-0008
About the Author
D. Korotkov
Moscow Aviation Institute (National Research University)
Russian Federation
Russian Federation
Daniil P. Korotkov (Korolev, Moscow Region) – Engineer, Department 106 “Aerodynamics, Dynamics and Control of Aircraft”
Volokolamskoe shosse 4, Moscow 125993
References
1. Panasyuk, M. I. & Novikov, L. S., eds. (2007). Model of Space: Scientific and information publication: In 2 volumes. Volume 1: Physical conditions in outer space. Moscow: KDU publ. (in Russ.).
2. Panasyuk, M. I. & Novikov, L. S., eds. (2007). Model of Space: Scientific information publication: in 2 volumes. Volume 2: Impact of the space environment on materials and equipment of spacecraft. Moscow: KDU publ. (in Russ.)
3. Bondarev, E. N., Dubasov, V. T., Ryzhov, Yu. A., Svirshchevsky, S. B. & Semenchikov, N. V. (1993). Aerohydromechanics. Moscow: Mashinostroenie publ. (in Russ.)
4. Barantsev, R. G. (1975). Interaction of rarefied gases with streamlined surfaces. Moscow: Nauka publ. (in Russ.).
5. Bass, V. P. & Brazinskiy, V. I. (1986). Gas-dynamic aspects of formation of proper atmosphere of spacecraft moving in the upper layers of the atmosphere. In: Observation of artificial Earth satellites (Publications of scientific results of the Intercosmos collaboration). No. 24. Moscow: Astronomical Council of the USSR publ., pp. 158–179 (in Russ.).
6. Bass, V. P. & Brazinskiy, V. I. (1984). Influence of the parameters of one's own external atmosphere on the functioning of aircraft. In: Observation of artificial celestial bodies, 81, 87–99 (in Russ.).
7. Brazinskiy, V. I. (1984). Calculation of the parameters of the proper atmosphere in the vicinity of aircraft of complex shape. In: Applied issues of aircraft aerodynamics. Kyiv: Naukova Dumka publ., pp. 50–54 (in Russ.).
8. Ryzhov, Yu. A., Burgasov, M. P., Kuzovkin, K. N. & Svirshchevsky, S. B. (1986). On methods for calculating the parameters of the proper external atmosphere of spacecraft. In: Abstracts of reports of the VIII All-Union Conference on the dynamics of rarefied gases. Vol. 1. Moscow. P. 107 (in Russ.).
9. Bass, V. P., Kovtunenko, V. M. & Chepurnoy, V. N. (1973). On the determination of aerodynamic characteristics of complex-shaped bodies in a free-molecular flow taking into account shading. In: Space Research, XII (1), 3–43 (in Russ.).
10. Bass, V. P. (1977). On an algorithm for a comprehensive study of the aerodynamic characteristics of spacecraft. In: Space Research in Ukraine. Iss. 11. Kyiv: Naukova Dumka publ., pp. 11–17 (in Russ.).
11. Abramovskaya, M. G. & Bass, V. P. (1987). Taking into account screening effects in algorithms for numerical modeling of free molecular flows. In: Aerodynamics, heat and mass transfer in a rarefied gas: Proceedings of the VIII All-Union Conference on the Dynamics of Rarefied Gases. Moscow, pp. 41–45 (in Russ.).
12. Shidlovsky, V. P. (1965). Introduction to Rarefied Gas Dynamics. Moscow: Nauka publ. (in Russ.).
13. Kogan, M. N. (1967). Rarefied Gas Dynamics. Moscow: Nauka publ. (in Russ.).
14. Koshmarov, Yu. A. & Ryzhov, Yu. A. (1977). Applied dynamics of rarefied gas. Moscow: Mashinostroenie publ. (in Russ.).
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