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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2023 Volume 63, Number 12, Pages 2051–2065 (Mi zvmmf11670)

Mathematical physics

Three-dimensional simulation of a high-velocity body motion in a tube with rarefied gas

A. N. Yakunchikov, A. R. Yuldasheva

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, 119991, Moscow, Russia

Abstract: Flow around a body moving at a high subsonic velocity in a tube filled with rarefied gas is studied. This aerodynamic problem is considered as applied to the task of designing a high-speed vacuum transport at finite Knudsen numbers. Parameters that are close to target characteristics of such systems are chosen, more precisely, speed of about 1000 km/h, significant transverse size of the body, and nitrogen–oxygen mixture (air) as the filling gas are chosen. The problem was solved in a three-dimensional statement.

Key words: rarefied gas, vacuum transport, aerodynamic drag, event-driven molecular–dynamic simulation, Hyperloop, EDMD.

UDC: 519.635

Received: 17.07.2023
Revised: 25.07.2023
Accepted: 22.08.2023

DOI: 10.31857/S0044466923120293


 English version:
Computational Mathematics and Mathematical Physics, 2023, 63:12, 2330–2343

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© Steklov Math. Inst. of RAS, 2026