Initiation and stabilization of an oblique detonation wave by a high-speed spherical projectile in a reactive gas

V. A. Vasetskiy, V. M. Grishchenko, V. V. Leschevich, O. G. Penyazkov

Institute for Heat and Mass Transfer named after A. V. Lykov, Belarus Academy of Sciences

Abstract: This paper presents experimentally obtained shadowgraph images of the shock wave structure in an unsteady supersonic reacting flow of a hydrogen-oxygen mixture, generated by a spherical projectile flying at a velocity exceeding the self-sustained detonation velocity. The conditions for the formation of a stabilized oblique detonation wave, initiated by the high-speed projectile both in free space and in the presence of a wedge surface placed at a certain distance along the projectile trajectory, are determined.

Keywords: light-gas gun, ballistic experiment, supersonic hydrogen-oxygen flow, oblique detonation wave.

UDC: 534.222.2+629.7.018.3

Received: 12.05.2025
Revised: 12.05.2025
Accepted: 02.06.2025

DOI: 10.15372/PMTF202515657

 English version: Journal of Applied Mechanics and Technical Physics, 2025, 66:5, 827–837

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