Results 1 to 10 of about 512 (129)

Effects of Injector Configuration on the Detonation Characteristics and Propulsion Performance of Rotating Detonation Engine (RDE)

Aerospace, 2023
Fuel injection and mixing affect the characteristics of detonation initiation and propagation, as well as the propulsion performance of rotating detonation engine (RDE). A study on the injector is carried out in the present investigation.
In-Hoi Koo, Keon-Hyeong Lee, Min-Su Kim, Hyung-Seok Han, Holak Kim, Jeong-Yeol Choi   +5 more
doaj   +2 more sources

Experimental Proof of Concept of a Noncircular Rotating Detonation Engine (RDE) for Propulsion Applications

Aerospace, 2022
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.
Jae-Hyuk Lee, Jae-Hoon Ryu, Eun-Sung Lee, Hyung-Seok Han, Jeong-Yeol Choi   +4 more
doaj   +2 more sources

Computational modeling of dynamic injector response in a Rotating Detonation Engine (RDE)

Applications in Energy and Combustion Science
Rotating Detonation Engines (RDEs) are a form of pressure gain combustion (PGC), offering a promising approach to increase the thermodynamic efficiency of a gas turbine combustor by utilizing a detonation-driven combustion process. In most RDEs, fuel and
Piyush Raj, Ashwin Kumar, Joseph Meadows
doaj   +2 more sources

Predictive Numerical Analysis on the Mixing Characteristics in a Rotating Detonation Engine (RDE) [PDF]

Evergreen, 2021
Detonation potential in rotating detonation engine (RDE) depends on well-mixed fuel and oxidizer in the annulus. A numerical study was carried out to analyze hydrogen (H2) – oxygen (O2) mixing in RDE prior to the detonation. A validation was effectively achieved by comparing the expected detonation criteria with the reported experimental results where ...
Rahman, Mohammad Nurizat, Abdul Wahid, Mazlan, Mohd. Yasin, Mohd. Fairus, Abidin, Ummikalsom, Mazlan, Muhammad Amri   +4 more
openaire   +2 more sources

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

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
doaj   +1 more source

Experimental Investigation of Detonation Propagation Modes and Thrust Performance in a Small Rotating Detonation Engine Using C₂H₄/O₂ Propellant

Energies, 2021
A small rotating detonation engine (RDE) model and the corresponding experimental setup were constructed for the experimental investigation of the detonation propagation characteristics and thrust performance of a circular RDE. Experiments were conducted
Hyung-Seok Han, Eun Sung Lee, Jeong-Yeol Choi   +2 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

Performance analysis of a rotating detonation model for future thermal power system using hydrogen as fuel

Energy Reports, 2022
The thermodynamic cycles of the detonation combustion could potentially deliver a performance increase of 20% beyond the conventional deflagration combustor such as gas turbines and ramjets, thus the detonative combustor is a prospective technology for ...
Mengmeng Zhao, Linqing Zhang, Weiye Huo, Hongyu Yang, Yixiang Yuan   +4 more
doaj   +1 more source

Deflagration-to-Detonation Transition in a Semi-Confined Slit Combustor Filled with Nitrogen Diluted Ethylene-Oxygen Mixture

Energies, 2023
The conditions for the mild initiation of the detonation of homogeneous stoichiometric ethylene-oxygen mixtures diluted with nitrogen up to ~40%vol.
Igor O. Shamshin, Vladislav S. Ivanov, Viktor S. Aksenov, Pavel A. Gusev, Sergey M. Frolov   +4 more
doaj   +1 more source