|
This article is cited in 6 scientific papers (total in 6 papers)
Continuous detonation of $\mathrm{CH}_4/\mathrm{H}_2$–air mixtures in an annular combustor with varied geometry
F. A. Bykovskii, S. A. Zhdan, E. F. Vedernikov Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia
Abstract:
Regimes of continuous detonation of $\mathrm{CH}_4/\mathrm{H}_2$–air mixtures with mass fractions of $\mathrm{H}_2$ in the fuel equal to $0$–$1/5$ are obtained in an annular combustor $503$ mm in diameter with variation of the combustor geometry. The influence of the combustor geometry on the velocity and number of transverse detonation waves, pressure in the combustor, and specific impulse is considered. It is found that three-fold constriction of the combustor exit cross area allows obtaining two-wave regimes of continuous spin detonation in the pure methane-air mixture. Based on stagnation pressures measured at the combustor exit, the specific impulses in the case of continuous detonation are determined for different compositions of the fuel.
Keywords:
continuous spin detonation, methane, hydrogen, air, transverse detonation waves, geometry of the annular combustor, fuel injection system, photorecording, flow structure, thrust characteristics.
Received: 07.10.2019 Revised: 23.01.2020 Accepted: 19.02.2020
Citation:
F. A. Bykovskii, S. A. Zhdan, E. F. Vedernikov, “Continuous detonation of $\mathrm{CH}_4/\mathrm{H}_2$–air mixtures in an annular combustor with varied geometry”, Fizika Goreniya i Vzryva, 56:5 (2020), 49–56; Combustion, Explosion and Shock Waves, 56:5 (2020), 537–544
Linking options:
https://www.mathnet.ru/eng/fgv707 https://www.mathnet.ru/eng/fgv/v56/i5/p49
|
Statistics & downloads: |
Abstract page: | 31 |
|