Results 21 to 30 of about 419 (166)

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

open access: yesEnergies, 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   +2 more
doaj   +1 more source

Two-dimensional numerical study of two-phase rotating detonation wave with different injections

open access: yesAIP Advances, 2019
Two-dimensional numerical simulations on the two-phase rotating detonation wave of a stoichiometric ratio of the air-octane mixture by the discrete phase model are performed.
Bo Sun, Hu Ma
doaj   +1 more source

Experimental study on the rotating detonation engine based on a gas mixture

open access: yesFrontiers in Energy Research, 2023
A direct connection test of a rotating detonation engine was conducted. The outer and inner diameters of the annular combustors were 206 and 166 mm, respectively.
Sainan Xue   +5 more
doaj   +1 more source

Research Progress on Rotating Detonations of Liquid Hydrocarbon Fuels [PDF]

open access: yesHangkong bingqi
Detonation waves propagate at velocities exceeding 1 000 m/s, enabling the reactants to complete reaction without significant expansion, thereby an isochoric combustion process can be achieved.
Wang Ke, Yu Xiaodong, Zhang Zhenrui, Fan Wei
doaj   +1 more source

Effects of total pressures and equivalence ratios on kerosene/air rotating detonation engines using a paralleling CE/SE method

open access: yesDefence Technology, 2021
In this paper, the kerosene/air rotating detonation engines(RDE) are numerically investigated, and the emphasis is laid on the effects of total pressures and equivalence ratios on the operation characteristics of RDE including the initiation ...
Fang Wang   +5 more
doaj   +1 more source

Numerical analysis on acoustic coupling of spinning detonation in a square tube

open access: yesJournal of Thermal Science and Technology, 2016
We investigate spinning detonations propagating in a square tube using numerical simulations based on three-dimensional compressible Euler equations and the two-step-reaction model proposed by Korobeinikov et al. The dynamics of the simulation results is
Yuta SUGIYAMA, Akiko MATSUO
doaj   +1 more source

Effects of Ozone Addition on Multi-Wave Modes of Hydrogen–Air Rotating Detonations

open access: yesAerospace, 2023
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 ...
Yang Wang, Cheng Tian, Pengfei Yang
doaj   +1 more source

Design and testing of a hydrogen–oxygen pre-detonator for rotating detonation engines [PDF]

open access: yesCEAS Space Journal
Abstract Rotating Detonation Engines (RDEs) have the potential to significantly increase the performance of liquid-propellant rocket engines. Besides, they are also a promising improvement for gas turbine combustors. Therefore, there is a rapidly growing interest world-wide into this technology.
Armbruster, Wolfgang   +6 more
openaire   +3 more sources

Influences of thermal physical property parameters on operating characteristics of simulated rotating detonation ramjet fueled by C12H23

open access: yesAIP 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   +6 more
doaj   +1 more source

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

open access: yesEnergies, 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   +4 more
doaj   +1 more source

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