Results 1 to 10 of about 259 (237)
Experimental validation of rotating detonation for rocket propulsion [PDF]
Scientific Reports, 2023 Space travel requires high-powered, efficient rocket propulsion systems for controllable launch vehicles and safe planetary entry. Interplanetary travel will rely on energy-dense propellants to produce thrust via combustion as the heat generation process
John W. Bennewitz +14 more
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Combustion Characteristics in Rotating Detonation Engines [PDF]
International Journal of Aerospace Engineering, 2021 A lot of studies on rotating detonation engines have been carried out due to the higher thermal efficiency. However, the number, rotating directions, and intensities of rotating detonation waves are changeful when the flow rate, equivalence ratio, inflow
Yuhui Wang, Wenyou Qiao, JialingLe
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Energies, 2021 A rotating detonation rocket engine (RDRE) with various convergent nozzles and chamber lengths is investigated. Three hundred hot-fire tests are performed using methane and oxygen ranging from equivalence ratio equaling 0.5–2.5 and total propellant flow ...
John W. Bennewitz +5 more
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Experimental Research of Two-phase Rotating Detonation Combustor Operating with High Total Temperature Air [PDF]
Journal of Applied Fluid Mechanics, 2022 Experiments on a two-phase rotating detonation combustor operating with gasoline and high total temperature air were conducted to investigate the initiation characteristics, operation mode, and propagation characteristics of a two-phase rotating ...
G. Ge +5 more
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Thrust characteristics research on continuous rotating detonation engine
Case Studies in Thermal Engineering, 2023 Detonation combustion can produce pressure enhancement effect, increasing engine thrust. In this paper, a 2D Euler control equation with chemical reaction is used to solve the periodic flow of the detonation wave in a rectangular plane. The combustion of
Qingwu Wang, Shihui Zhang
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FirePhysChem, 2023 To investigate the characteristics of rotating detonation waves fueled by liquid kerosene with increasing equivalence ratios, the experiments were performed through increasing the supply of liquid kerosene under three different mass flow rates of ...
Haolong Meng +4 more
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Frontiers in Energy Research, 2022 The operating characteristic of two-phase rotating detonation fueled by kerosene in a hollow combustor with the isolation section is experimentally studied. When the air mass flow rate is 1.5 kg/s, the equivalence ratio is 0.98, and the total temperature
Sainan Xue +3 more
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Aerospace, 2022 A continuous detonation engine with various exhaust nozzles, analogous to typical scramjet cavity combustors with variable rear-wall heights, was adopted to perform a succession of cylindrical air-breathing continuous rotating detonation experiments ...
Guangyu Wang +3 more
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Nonidealities in Rotating Detonation Engines
Annual Review of Fluid Mechanics, 2023 A rotating detonation engine (RDE) is a realization of pressure-gain combustion, wherein a traveling detonation wave confined in a chamber provides shock-based compression along with chemical heat release. Due to the high wave speeds, such devices can process high mass flow rates in small volumes, leading to compact and unconventional designs.
Venkat Raman +2 more
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Modeling thermodynamic trends of rotating detonation engines [PDF]
Physics of Fluids, 2020 The formation of a number of co- and counter-rotating coherent combustion wave fronts is the hallmark feature of the Rotating Detonation Engine (RDE). The engineering implications of wave topology are not well understood nor quantified, especially with respect to parametric changes in combustor geometry, propellant chemistry, and injection and mixing ...
James Koch, J. Nathan Kutz
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