Initiation of Detonation Combustion and Determination of Specific Impulse during Combustion of a Kerosene–Air Mixture in a Radial Vortex Combustor

Initiation of Detonation Combustion and Determination of Specific Impulse during Combustion of a Kerosene–Air Mixture in a Radial Vortex Combustor Научная публикация

Журнал

Combustion, Explosion and Shock Waves
ISSN: 0010-5082

Вых. Данные

Год: 2026, Том: 62, Номер: 1, Страницы: 60-70 Страниц : 11 DOI: 10.1134/s0010508226700206

Ключевые слова

continuous spin detonation, pulse detonation, radial vortex combustor, aviation kerosene, air, flow structure, specific impulse

Авторы

Bykovskii F.A. ¹ , Zhdan S.A. ¹ , Vedernikov E.F. ¹

Организации

1	Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia

Detonation combustion regimes of a two-phase mixture of TS-1 aviation kerosene and air have been implemented and studied in a radial vortex combustor 500 mm in diameter with exhaustion toward the center and with a nozzle and axial partitions aligning the flow of combustion products in the axial direction. Continuous spin and pulse detonation regimes are obtained under strong initiation (by a detonation wave) and weak initiation (via deflagration-to-detonation transition). Under weak initiation conditions, continuous spin detonation with one transverse detonation wave is always observed, with the specific impulse reaching the maximum value in this experimental setup, s. The specific impulses of this radial combustor are compared with those of annular cylindrical combustors burning kerosene in a continuous multifront detonation regime. It has been found that during detonation combustion of kerosene in cold air in annular cylindrical combustors, the specific impulses are higher than those in radial combustors. At hydrogen-to-air flow ratios close to stoichiometry at the start of injection, a self-ignition regime is observed, followed by a transition to continuous spin detonation. The time of the transition process is reduced to 10 ms by forced (spark) initiation of the hydrogen–air mixture.

Bykovskii F.A. , Zhdan S.A. , Vedernikov E.F.
Initiation of Detonation Combustion and Determination of Specific Impulse during Combustion of a Kerosene–Air Mixture in a Radial Vortex Combustor
Combustion, Explosion and Shock Waves. 2026. V.62. N1. P.60-70. DOI: 10.1134/s0010508226700206 OpenAlex

Поступила в редакцию:	22 июл. 2024 г.
Принята к публикации:	16 окт. 2024 г.
Опубликована в печати:	4 мая 2026 г.

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