Results 91 to 100 of about 4,315 (227)

Analysis of Development Trends for Rotating Detonation Engines Based on Experimental Studies

Aerospace
Rotating detonation engines (RDEs), which are Humphrey cycle-based constant-volume combustion engines, utilize detonation waves to attain higher efficiencies compared with conventional constant-pressure combustion engines through pressure gain.
Min-Sik Yun, Tae-Seong Roh, Hyoung Jin Lee   +2 more
doaj   +1 more source

Analytical Models for the Thrust of a Rotating Detonation Engine [PDF]

, 2017
Two models are proposed for rotating detonation engine performance. The first model is motivated by models of pulse detonation engine performance which are based on the pressure-time history within the detonation tube.
Kasahara, J., Shepherd, J.E.
core  

Fatigue crack propagation in microcapsule toughened epoxy [PDF]

, 2004
The addition of liquid-filled urea-formaldehyde (UF) microcapsules to an epoxy matrix leads to significant reduction in fatigue crack growth rate and corresponding increase in fatigue life.
Brown, Eric N., Sottos, Nancy R., White, Scott R.   +2 more
core   +1 more source

Oblique detonation waves stabilized in rectangular-cross-section bent tubes [PDF]

, 2011
Oblique detonation waves, which are generated by a fundamental detonation phenomenon occurring in bent tubes, may be applied to fuel combustion in high-efficiency engines such as a pulse detonation engine (PDE) and a rotating detonation engine (RDE). The
Kasahara Jiro, Kudo Yusuke, Matsuo Akiko, Nagura Yuuto, Sasamoto Yuya, 笠原 次郎   +5 more
core   +1 more source

A study of two phase detonation as it relates to rocket motor combustion instability [PDF]

Two-phase detonation in rocket motor combustion instability - production of monodisperse ...
Dabora, E. K., Nicholls, J. A., Ragland, K. W.   +2 more
core   +1 more source

Large-amplitude resonant combustion in liquid rocket engine chambers - Some aspects of initiation [PDF]

Large amplitude, high frequency resonant combustion initiation in rocket engine ...
Kovitz, A. A.
core   +1 more source

Modelling Rotating Detonative Combustion Fueled by Partially Pre-vaporized n-Heptane Sprays

, 2020
Eulerian-Lagrangian simulations are conducted for two-dimensional Rotating Detonative Combustion (RDC) fueled by partially prevaporized n-heptane sprays. The influences of droplet diameter and total equivalence ratio on detonation combustion and droplet dynamics are studied. It is found that small n-heptane droplets (e.g. 5 um) are completely vaporized
Zhao, Majie, Zhang, Huangwei
openaire   +2 more sources

Numerical Investigation of the Effect of Equivalent Ratio on Detonation Characteristics and Performance of CH₄/O₂ Rotating Detonation Rocket Engine

Aerospace
Equivalent ratio (ER) is an important factor affecting detonation characteristics and propulsion performance of rotating detonation rocket engine (RDRE).
Xiao Xu, Qixiang Han, Yining Zhang
doaj   +1 more source

Traversing Hot-Jet Ignition in a Constant-Volume Combustor [PDF]

, 2014
Hot-jet ignition of a combustible mixture has application in internal combustion engines, detonation initiation, and wave rotor combustion. Numerical predictions are made for ignition of combustible mixtures using a traversing jet of chemically active ...
Karimi, Abdullah, Nalim, M. Razi, Rajagopal, Manikanda   +2 more
core  

A Nanosecond-Scale, High-Spatiotemporal-Resolution, Near-UV–Visible Imaging System for Advanced Optical Diagnostics with Application to Rotating Detonation Engines

Photonics
The combustion diagnostics of rotating detonation engines (RDE) based on excited-state hydroxyl radical (OH*) chemiluminescence imaging is an important method used to characterize combustion flow fields.
Junhui Ma, Wen Dai, Dongqi Chen, Jingling Hu, Dong Yang, Lingxue Wang, Dezhi Zheng, Yingchen Shi, Haocheng Wen, Bing Wang   +9 more
doaj   +1 more source