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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
doaj   +2 more sources

Investigation of the Pressure Gain Characteristics and Cycle Performance in Gas Turbines Based on Interstage Bleeding Rotating Detonation Combustion [PDF]

Entropy, 2019
To further improve the cycle performance of gas turbines, a gas turbine cycle model based on interstage bleeding rotating detonation combustion was established using methane as fuel.
Lei Qi, Zhitao Wang, Ningbo Zhao, Yongqiang Dai, Hongtao Zheng, Qingyang Meng   +5 more
doaj   +2 more sources

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, Jason R. Burr, Blaine R. Bigler, Robert F. Burke, Aaron Lemcherfi, Tyler Mundt, Taha Rezzag, Ethan W. Plaehn, Jonathan Sosa, Ian V. Walters, S. Alexander Schumaker, Kareem A. Ahmed, Carson D. Slabaugh, Carl Knowlen, William A. Hargus   +14 more
doaj   +2 more sources

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, Supraj Prakash, Mirko Gamba   +2 more
exaly   +2 more sources

Experimental Study on the Propagation Characteristics of Rotating Detonation Wave with Liquid Hydrocarbon/High-Enthalpy Air Mixture

Aerospace, 2023
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 ...
Bingyue Jia, Yining Zhang, Hao Meng, Fanxiao Meng, Hu Pan, Yanji Hong   +5 more
doaj   +1 more source

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, Y. Ma, Z. Xia, H. Ma, L. Deng, C. Zhou   +5 more
doaj   +1 more source

Investigation on the generation and propagation mechanism of triple-point structures on rotating detonation front

AIP Advances, 2023
Based on the Navier–Stokes equation with chemical reaction kinetics, rotating detonation waves are numerically simulated using premixed reactants H2/air at a stoichiometric ratio. The triple-point structure on the detonation front is captured.
Pengxin Liu, Hongmin Su, Qilong Guo, Dong Sun, Chen Li   +4 more
doaj   +1 more source

Data-driven modeling of rotating detonation waves [PDF]

Physical Review Fluids, 2021
The direct monitoring of a rotating detonation engine (RDE) combustion chamber has enabled the observation of combustion front dynamics that are composed of a number of co- and/or counter-rotating coherent traveling shock waves whose nonlinear mode-locking behavior exhibit bifurcations and instabilities which are not well understood.
Ariana Mendible, James Koch, Henning Lange, Steven L. Brunton, J. Nathan Kutz   +4 more
openaire   +2 more sources

Characteristics of rotating detonation wave fueled by liquid kerosene with increasing equivalence ratios

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, Baoxing Li, Guiyang Xu, Zhong Wang, Chunsheng Weng   +4 more
doaj   +1 more source

Investigation of Rotating Detonation Fueled by Liquid Kerosene

Energies, 2022
The performance of rotating detonation engines (RDEs) is theoretically better than that of traditional aero engines because of self-pressurization. A type of swirl injection scheme is introduced in this paper for two-phase detonation.
Jianping Zhou, Feilong Song, Shida Xu, Xingkui Yang, Yongjun Zheng   +4 more
doaj   +1 more source