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Jayson Craig Small and Liwei Zhang
The performance of detonation engines depends on propellant injectors. This study investigates a fluidic-valve injector mounted to a detonation tube. The injector is equipped with a recessed cavity connecting to the fuel plenum. After verifying the theor...
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Zhanlin Feng, Kuanliang Wang and Honghui Teng
This study numerically investigates the effects of diluent gas proportion, the overdrive factor, and throat width on the wave structure and thrust performance of a ram accelerator operating in super-detonative mode. For premixed gas of a high energy dens...
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Jianxiu Qin and Dehua Zhu
Two-dimensional oblique detonation waves (ODWs) induced by finite wedges in a stoichiometric hydrogen?air mixture have been investigated numerically based on reactive Euler equations with a detailed chemical reaction model. The main zone affected by the ...
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Zhenjuan Xia, Hu Ma, Gaoyang Ge, Yong He and Changsheng Zhou
A disk-shaped rotating detonation engine with H2/air mixture was tested to identify the impact of combustor outlet geometry on the engine?s operating characteristics. Three combustor outlet diameters and five outlet lengths are employed in the experiment...
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Bingyue Jia, Yining Zhang, Hao Meng, Fanxiao Meng, Hu Pan and Yanji Hong
Rotating detonation engines (RDEs) are a promising propulsion technology featuring high thermal efficiency and a simple structure. To adapt the practical engineering applications of ramjet RDEs, rotating detonation combustion using a liquid hydrocarbon a...
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Zijian Zhang and Ziqi Jiang
Detonation initiation is a prerequisite to normal operations of an oblique detonation engine (ODE), and initiation-assistant measures are imperative in cases of initiation failure that occur in a length-limited combustor under wide-range flight condition...
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Yang Wang, Cheng Tian and Pengfei Yang
Ozone addition presents a promising approach for optimizing and regulating both combustion and ignition mechanisms. In Rotating Detonation Engines (RDEs), investigating the impact of ozone addition is particularly important due to the fact of their uniqu...
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Jae-Hyuk Lee, Jae-Hoon Ryu, Eun-Sung Lee, Hyung-Seok Han and Jeong-Yeol Choi
A noncircular engine cross-section could provide great flexibility in the integration of propulsion into the airframe. In this work, a tri-arc RDE was constructed and tested as an example of noncircular cross-sectioned RDE. The operational characteristic...
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Fan Yang, Mingyue Lin, Zongmin Hu and Guilai Han
This paper investigates the flowfield patterns and distributions of surface heat flux of the cantilevered injection system for oblique detonation engine inlets. Three-dimensional complex shock wave/boundary layer interaction and shock wave/shock wave int...
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Marcin Konarzewski, Robert Panowicz and Adam Jeschke
The experience of recent military missions clearly shows the importance of protecting vehicles and the people they carry from mines and IEDs. This protection can be achieved in many ways, using both active and passive solutions. One of the most popular s...
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