Results 31 to 40 of about 512 (129)

Propagation of gaseous detonation waves in a spatially inhomogeneous reactive medium [PDF]

, 2017
Detonation propagation in a compressible medium wherein the energy release has been made spatially inhomogeneous is examined via numerical simulation. The inhomogeneity is introduced via step functions in the reaction progress variable, with the local ...
Higgins, Andrew J., Kiyanda, Charles B., Mi, XiaoCheng, Ng, Hoi Dick, Nikiforakis, Nikolaos   +4 more
core   +2 more sources

Supersonic Exhaust from a Rotating Detonation Engine with Throatless Diverging Channel [PDF]

, 2022
Converging–diverging nozzles are common in rocket engine systems to increase the exhaust velocity and improve thrust performance. In this study, we focused on the acceleration of subsonic burned gas without a structural throat via detonation to realize a
Braun, James, Funaki, Ikkoh, Goto, Keisuke, Higashino, Kazuyuki, Ishihara, Kazuki, Ito, Shiro, Itouyama, Noboru, Kasahara, Jiro, Kawasaki, Akira, Matsuo, Akiko, Matsuoka, Ken, Meyer, Terrence, Nakata, Kotaro, Ota, Kosei, Paniagua, Guillermo, Watanabe, Hiroaki   +15 more
core   +1 more source

BYCFoam: An Improved Solver for Rotating Detonation Engines Based on OpenFOAM

Energies
A rotating detonation engine (RDE) is a highly promising detonation-based propulsion system and has been widely researched in recent decades. In this study, BYCFoam, the latest gaseous version of the BYRFoam family, is developed specifically for RDE ...
Miao Cheng, Zhaohua Sheng, Jian-Ping Wang   +2 more
doaj   +1 more source

Development of a Small Scale Rotating Detonation Engine [PDF]

, 2020
The Rotating Detonation Engine (RDE) has been researched extensively in recent years, but the minimum size limits of an RDE have not been well investigated.
Dechert, Joseph R.
core   +1 more source

Compositional Tuning and Surface Restructuring Synergistically Enhance Perovskite Ferrite Catalysts for Hydrogen Evolution in a Membrane‐Less Electrolyzer

Advanced Energy Materials, EarlyView.
In this work, a self‐restructuring Fe‐based perovskite catalyst is developed, leveraging in situ amorphization to achieve a “self‐improving” behavior for hydrogen evolution. When integrated into a custom‐built membrane‐less electrolyzer, the system demonstrates a record‐breaking 1000 h stability, providing a robust and practical pathway for the ...
Yixin Bi, Yuhao Wang, Zilong Wang, Yufei Song, Nuotong Li, Jingwei Li, Arini Kar, Qing Chen, Francesco Ciucci   +8 more
wiley   +1 more source

Experimental study on effects of nozzles and combustors on the rotating detonation rocket engine in pulse operation

Results in Engineering
The rotating detonation engine (RDE) is an innovative pressure-gain combustion device that harnesses detonation waves for efficient fuel combustion.
Guining Liu, Zixuan Wang, Yingying Ruan, Zewen Zhong, Rui Wang, Shengbing Zhou, Ning Hu   +6 more
doaj   +1 more source

Effect of Equivalence Ratio and Turbulence Fluctuations on the Propagation of Detonations [PDF]

, 2017
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/143031/1/6.2017-0374 ...
Fiévet, Romain, Masselot, Damien, Raman, Venkatramanan   +2 more
core   +1 more source

Structural design and property regulation of organic polymers for photocatalytic synthesis of H2O2

InfoScience, EarlyView.
Photocatalytic synthesis of H2O2 offers a sustainable approach. Photocatalytic efficiency depends critically on interfacial electron transfer kinetics and spatial charge separation. Herein, we systematically analyze key factors governing photogenerated carrier dynamics and propose engineered strategies to optimize performance, thereby providing design ...
Mingyang Xu, Rongchen Shen, Yingyin Mo, Guijie Liang, Shijie Li, Peng Zhang, Xiaobo Chen, Youji Li, Xin Li   +8 more
wiley   +1 more source

Review on the fundamentals and recent developments in rotating detonation engines experimental and numerical setups

Propulsion and Power Research
Rotating detonation engines (RDE) offer a promising leap in thermal efficiency compared to conventional Brayton-based reaction engines. Over the past half-century, RDE technology has garnered increasing interest, particularly in the last two decades with
O. Venegas, C. Hernández, C. Fernández
doaj   +1 more source

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

Advanced Functional Materials, Volume 36, Issue 11, 5 February 2026.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek, Soshan Cheong, Julie Cairney, Richard D. Tilley, Ingemar Persson   +4 more
wiley   +1 more source