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

Zh. Vychisl. Mat. Mat. Fiz., 2025 Volume 65, Number 8, Pages 1373–1386 (Mi zvmmf12032)

Molecular Biophysics

RANS simulation of supersonic flow of a cylinder fixed between parallel plates

E. V. Babich, E. V. Kolesnik

Peter the Great St. Petersburg Polytechnic University

Abstract: The results of RANS computations of a supersonic flow of a cylinder fixed between parallel plates are given. The Mach number of the incoming flow is M = 1.85. Methodological data on the effect of the grid resolution and turbulence model on the predicted structure of viscous-non-viscous interaction are obtained. Parametric calculations were performed for several values of the relative distance between plates. Three-dimensional effects arising from the interaction of boundary layers with the leading edge of the cylinder are studied. The flow structure is shown to change qualitatively when the distance between the plates decreases – an additional “hanging” compression shock is formed, the length and height of the separated-flow region increases, and the area of high heat flows expands.

Key words: high-speed currents, numerical simulation, RANS, internal currents, viscous-non-viscous interaction, horseshoe vortices.

UDC: 519.63

Received: 12.03.2025
Accepted: 22.05.2025

DOI: 10.31857/S0044466925080056


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:8, 1872–1884

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© Steklov Math. Inst. of RAS, 2026