Results 31 to 40 of about 1,494,380 (180)

Experimental Study on the Propagation Characteristics of Rotating Detonation Wave with Rich Combustion Gas in Solid Ram Engine [PDF]

open access: yesHangkong bingqi
In order to study the rotational detonation characteristics of rich combustion gas in solid ramjet engines, this paper replaces solid rich combustion gas with CH4/CO/H2 mixture as fuel and uses ambient temperature air as oxidant to investigate the ...
Weng Chunsheng, Han Jiaxiang, Bai Qiaodong, Liu Zhuyong, Zheng Quan
doaj   +1 more source

Experimental Investigation of a Cylindrical Air-Breathing Continuous Rotating Detonation Engine with Different Nozzle Throat Diameters

open access: yesAerospace, 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
doaj   +1 more source

Detonation Diffraction in Mixtures with Various Degrees of Instability [PDF]

open access: yes, 2005
Planar laser induced fluorescence (PLIF) is widely used in combustion diagnostics but has only recently been successfully applied to detonation. The strong spatial variations in temperature, pressure, and background composition under these conditions ...
Pintgen, Florian Peter
core   +1 more source

Effect of Combustor Outlet Geometry on Operating Characteristics of Disk-Shaped Rotating Detonation Engine

open access: yesAerospace, 2023
A disk-shaped rotating detonation engine with H2/air mixture was tested to identify the impact of combustor outlet geometry on the engine’s operating characteristics.
Zhenjuan Xia   +4 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 Inlet Condition Variations on the Operating Modes of Rotating Detonation Engines

open access: yes气体物理, 2023
In this study, the operating modes of the rotating detonation engine (RDE) under various inlet conditions were investigated numerically. It was shown that after the sudden reduction of the inlet total pressure, the resulting decrease of the mass flow ...
Song-bai YAO   +2 more
doaj   +1 more source

Simulations of Compressible, Diffusive, Reactive Flows with Detailed Chemistry Using a High-Order Hybrid WENO-CD Scheme [PDF]

open access: yes, 2012
A hybrid weighted essentially non-oscillatory (WENO)/centered-difference (CD) numerical method, with low numerical dissipation, high-order shock-capturing, and structured adaptive mesh refinement (SAMR), has been developed for the direct numerical ...
Ziegler, John Lewis (Jack)
core   +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

A computer-based tool for preliminary design and performance assessment of Continuous Detonation Wave Engines [PDF]

open access: yes, 2013
For preliminary design and performance assessment of Continuous Detonation Wave Engine (CDWE), a computer-based tool has been developed which considers an ideal and simplified model of a CDWE in combination with a diverging nozzle.
Cervone, Angelo   +3 more
core  

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

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