Numerical investigation of two-wave collision and wave structure evolution of rotating detonation engine with hollow combustor

Xia, Zhi-Jie; Tang, Xinmeng; Luan, Ming-Yi; Zhang, Shujie; Ma, Zhiyi

doi:10.1016/j.ijhydene.2018.09.165

Cited by 46 publications

(4 citation statements)

References 9 publications

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“…Detonation combustion is used to replace the traditional ramjet engine combustion in the rotating detonation ramjet engine [1] , and the ramjet engine inlet is used to supply the oxidant. Because the rotating detonation ramjet engine has the advantages of both RDE and ramjet engine, it also has the advantages of high specific impulse, simple structure, large thrust-to-weight ratio, etc., and has received extensive attention [2][3][4] .…”

Section: Introductionmentioning

confidence: 99%

An experimental study on gas-solid two-phase rotating detonation ramjet engine based on aluminum powder fuel

Jing,

2024

J. Phys.: Conf. Ser.

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In order to explore the feasibility of solid powder detonation technology, the ground direct connection test of aluminum powder/hydrogen/air fuel detonation engine was carried out in this paper. The experimental results show that hydrogen is needed to achieve detonation combustion of aluminum powder with a diameter of 1 μm. A series of tests were carried out in the range of equivalence ratio of 0.8-1.2. With the increase of equivalence ratio, the mean value of steady pressure, average peak pressure, and average wave velocity of rotating detonation combustion increased first and then decreased gradually, and reached the maximum at the equivalence ratio of 0.9. The maximum propagation frequency of the detonation wave is 2653 Hz, and the average wave velocity is 1667 m/s.

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Section: Introductionmentioning

confidence: 99%

An experimental study on gas-solid two-phase rotating detonation ramjet engine based on aluminum powder fuel

Jing,

2024

J. Phys.: Conf. Ser.

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“…Wang et al 33 suggested that the generation or collision of multiple RDWs and mode transition are the basic phenomena involved in the evolution process. Xia et al 34 deemed that the double-wave collision is essential for the wave structure evolution during the self-adjustment process of the rotating detonation flow field.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis on evolution process of multiple rotating detonation waves with ethylene–oxygen–nitrogen mixture

Meng

Wang

Xiao

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part G:

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Two-dimensional numerical simulations of a rotating detonation combustor (RDC) fueled by ethylene–oxygen–nitrogen were performed to investigate the evolution process of multiple rotating detonation waves (RDWs), that is, initial chaotic stage, self-adjustment stage, and the final stable stage. The number of stable RDWs corresponding to the initial conditions was in good agreement with that predicted by an empirical model proposed by Daniau et al. from Lavrenty’ev Institute of Hydrodynamics (LIH). From the simulation results, the spontaneous formation of a reverse RDW and the transition of trailing waves to detonation waves contribute to the emergence of the chaotic stage. The self-adjustment stage comprises three distinctive parts, which are the self-adjustment of the propagation direction, the number, and the propagation characteristics of RDWs. Furthermore, the double-wave collision was found to play a significant role in modulating the propagation direction as well as the number of RDWs. The same self-adjusting trend of different instantaneous propagation characteristics (e.g., peak pressure, propagation velocity, and wave front height) of the RDWs was observed, suggesting the self-similarity property of the adjusting mechanism demonstrated in the evolution of rotating detonation dynamics.

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“…On the contrary, experimental observation demonstrated a shift from the dual-wave mode to the single-wave mode in H 2 -air propellant [14], which are two distinct mechanisms relating to the formation of RDWs in an HCC under atmospheric ambient pressure with different injection conditions [15,16]. Moreover, the Laval nozzle with optional contraction ratios [17], hydrocarbon fuel [14,17], and contrasting injection area ratio [4,13] make the stability of RDW more diverse and complicated. As for the thrust performance, simulation results reported that the absence of the inner wall does not hinder the thrust performance of RDEs [18].…”

mentioning

confidence: 99%

“…Results obtained from simulation and experiment were divergent [12]. For example, numerical studies in premixed H 2 -air propellant [13] have classified the wave structure of RDW evolution as twowave collision (symmetric collision and asymmetric collision), abscission of detonation tail, and shock-wave-to-detonation transition. On the contrary, experimental observation demonstrated a shift from the dual-wave mode to the single-wave mode in H 2 -air propellant [14], which are two distinct mechanisms relating to the formation of RDWs in an HCC under atmospheric ambient pressure with different injection conditions [15,16].…”

mentioning

confidence: 99%

Propagation Mode Analysis on H2–Air Rotating Detonation Waves in a Hollow Combustor

Lin¹,

Tong²,

Lin

et al. 2020

AIAA Journal

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Numerical investigation of two-wave collision and wave structure evolution of rotating detonation engine with hollow combustor

Cited by 46 publications

References 9 publications

An experimental study on gas-solid two-phase rotating detonation ramjet engine based on aluminum powder fuel

An experimental study on gas-solid two-phase rotating detonation ramjet engine based on aluminum powder fuel

Numerical analysis on evolution process of multiple rotating detonation waves with ethylene–oxygen–nitrogen mixture

Propagation Mode Analysis on H2–Air Rotating Detonation Waves in a Hollow Combustor

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