Detonation combustion of a hydrogen–oxygen mixture in a plane–radial combustor with exhaustion toward the center


Дәйексөз келтіру

Толық мәтін

Ашық рұқсат Ашық рұқсат
Рұқсат жабық Рұқсат берілді
Рұқсат жабық Тек жазылушылар үшін

Аннотация

Regimes of continuous spin detonation in a plane–radial combustor with an external diameter of 80 mm with peripheral injection of a hydrogen–oxygen mixture in the range of specific flow rates of the mixture 3.6–37.9 kg/(s ·m2) are obtained for the first time. Depending on the diameter of the exit orifice in the combustor (40, 30, or 20 mm), specific flow rate of the mixture, its composition, and counterpressure, one to seven transverse detonation waves with a frequency from 6 to 60 kHz are observed. It is found that the number of detonation waves increases, while their intensity decreases owing to reduction of the exit orifice diameter or to an increase in the counterpressure. The flow structure in the region of detonation waves is analyzed. The domain of detonation regimes in the coordinates of the fuel-to-air equivalence ratio and specific flow rate of the mixture is constructed. A physicomathematical model of continuous spin detonation in a plane–radial combustor is formulated. For parameters of hydrogen and oxygen injection into the combustor identical to experimental conditions, the present simulations predict similar parameters of detonation waves, in particular, the number of waves over the combustor circumference and the wave velocity.

Авторлар туралы

F. Bykovskii

Lavrentyev Institute of Hydrodynamics, Siberian Branch

Хат алмасуға жауапты Автор.
Email: bykovskii@hydro.nsc.ru
Ресей, Novosibirsk, 630090

S. Zhdan

Lavrentyev Institute of Hydrodynamics, Siberian Branch

Email: bykovskii@hydro.nsc.ru
Ресей, Novosibirsk, 630090

E. Vedernikov

Lavrentyev Institute of Hydrodynamics, Siberian Branch

Email: bykovskii@hydro.nsc.ru
Ресей, Novosibirsk, 630090

A. Samsonov

Lavrentyev Institute of Hydrodynamics, Siberian Branch

Email: bykovskii@hydro.nsc.ru
Ресей, Novosibirsk, 630090

A. Zintsova

Lavrentyev Institute of Hydrodynamics, Siberian Branch

Email: bykovskii@hydro.nsc.ru
Ресей, Novosibirsk, 630090

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