Results 11 to 20 of about 4,315 (227)

Effect of combustion chamber diameter size on scramjet rotating detonation under high Mach number flow conditions

AIP Advances, 2023
This study conducted 3D numerical simulations to investigate the impact of combustion chamber diameter on the combustion characteristics of liquid kerosene scramjet rotating detonation under high Mach number flow conditions (Ma6/28 km). After ignition, a
Chen Shu, Wei Lin, Yiheng Tong, Siyin Zhou, Chenglong Yan, Yuchao Gao   +5 more
doaj   +1 more source

Numerical simulation of similarities between rotating detonation and high-frequency combustion instability under two mixing schemes

AIP Advances, 2022
This paper presents an experimental study on rotating detonations in a hollow combustor with the slit-orifice nozzle. The experimental results reveal that the propagation speed of detonation waves increases with the rise of mass flow rates and is greater
Liangzhong Fan, Qiang Shi, Wei Lin, Yiheng Tong, Jian Sun, Wansheng Nie   +5 more
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Influences of thermal physical property parameters on operating characteristics of simulated rotating detonation ramjet fueled by C12H23

AIP Advances, 2022
Two-phase rotating detonation ramjets are considered to be suitable for aerospace applications due to their high thermodynamic cycle efficiency. These engines have an extremely complex internal flow field, in which the liquid fuel undergoes physical and ...
Chenglong Yan, Chen Shu, Jiafeng Zhao, Lingyu Su, Yiheng Tong, Qiaofeng Xie, Wei Lin   +6 more
doaj   +1 more source

Investigation on C2H4-Air combustion mode in a non-premixed rotating detonation combustor

Propulsion and Power Research, 2022
Based on the working characteristics of the rotating detonation combustor, the combustion mode of C2H4-Air under non-premixed injection conditions is experimentally studied in this paper.
Shengbing Zhou, Hu Ma, Yuan Ma, Changsheng Zhou, Ning Hu   +4 more
doaj   +1 more source

Experimental Study on Propagation Characteristics of Kerosene/Air RDE with Different Diameters

Energies, 2022
A series of experimental tests were carried out in order to study the propagation characteristics of a liquid kerosene rotating detonation engine (RDE) with different diameters. Distinguished characteristics of spatial and temporal instability were found
Shida Xu, Feilong Song, Jianping Zhou, Xingkui Yang, Peng Cheng   +4 more
doaj   +1 more source

Gliding arc plasma adjusting pre-combustion cracking products

Defence Technology, 2022
In view of the difficulty of kerosene-air detonation faced by the application of rotating detonation to aviation engines, in order to improve the kerosene detonation activity, the atmospheric pressure gliding arc plasma is used to conduct secondary ...
Fei-long Song, Yun Wu, Shi-da Xu, Xing-kui Yang, Jian-ping Zhou, Xin Chen   +5 more
doaj   +1 more source

Comparative analysis of alternative fuels in detonation combustion [PDF]

, 2016
Detonation combustion prominently exhibits high thermodynamic efficiency which leads to better performance. As compared to the conventionally used isobaric heat addition in a Brayton cycle combustor, detonation uses a novel isochoric Humphrey cycle which
Azami, M. H., Savill, Mark A.
core   +1 more source

Descending Modal Transition Dynamics in a Large Eddy Simulation of a Rotating Detonation Rocket Engine

Energies, 2021
Rotating detonation rocket engines (RDREs) exhibit various unsteady phenomena, including modal transitions, that significantly affect their operation, performance and stability.
Armani Batista, Mathias C. Ross, Christopher Lietz, William A. Hargus   +3 more
doaj   +1 more source

STUDY OF COMBUSTION CHAMBER WITH A ROTATING DETONATION

Journal of KONES. Powertrain and Transport, 2015
Institute of Aviation in Warsaw realizes the project concerning the application of the phenomenon of combustion with rotating detonation to the combustion chamber designed and destined for turbine engines. The test chamber is adapted for supplying both with liquid (aviation kerosene) and gaseous fuels in the form of mixture with compressed air.
Borys Łukasik, Artur Rowiński, Andrzej Irzycki, Krzystof Snopkiewicz   +3 more
openaire   +1 more source

Pressure Gain Characteristic of Continuously Rotating Detonation Combustion and its Influence on Gas Turbine Cycle Performance

IEEE Access, 2018
Considering the pressure gain characteristic of continuously rotating detonation (CRD) combustion, a rotating detonation gas turbine cycle was established using methane as fuel.
Lei Qi, Ningbo Zhao, Zhitao Wang, Jialong Yang, Hongtao Zheng   +4 more
doaj   +1 more source