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This article is cited in 7 scientific papers (total in 7 papers)
Realization and modeling of continuous spin detonation of a hydrogen-oxygen mixture in flow-type combustors. 1. Combustors of cylindrical annular geometry
F. A. Bykovskii, S. A. Zhdan, E. F. Vedernikov Lavrent’ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia
Abstract:
A comprehensive numerical and experimental study of continuous spin detonation of a hydrogen-oxygen mixture in flow-type cylindrical annular combustors 4 and 10 cm in diameter is performed. Hydrogen is injected through injectors, and oxygen is supplied as a continuous flow through an annular slot. The flow structure is studied with variations of the flow rates of the components of the mixture and the width of the slot for oxygen supply. The region of existence of continuous spin detonation is determined as a function of the fuel-to-air equivalence ratio and specific flow rates of the components with variations of the relative width of the slot and combustor diameter. A two-dimensional unsteady gas-dynamic problem of rotation dynamics of a transverse detonation wave with geometric parameters of the combustor corresponding to those used in experiments is solved numerically. A comparison with experiments is performed, and reasonable agreement is reached for the detonation velocity and mean pressure in the combustor. It is shown that the geometric size of the transverse detonation waves is underestimated because the gas-dynamic model does not involve the mixing process, and the number of waves is almost doubled.
Keywords:
continuous spin detonation, flow-type combustor, transverse detonation waves, flow structure, mathematical modeling.
Received: 18.08.2008
Citation:
F. A. Bykovskii, S. A. Zhdan, E. F. Vedernikov, “Realization and modeling of continuous spin detonation of a hydrogen-oxygen mixture in flow-type combustors. 1. Combustors of cylindrical annular geometry”, Fizika Goreniya i Vzryva, 45:5 (2009), 111–123; Combustion, Explosion and Shock Waves, 45:5 (2009), 606–617
Linking options:
https://www.mathnet.ru/eng/fgv1340 https://www.mathnet.ru/eng/fgv/v45/i5/p111
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