Results 61 to 70 of about 139,572 (294)

Analysis of flame acceleration induced by wall friction in open tubes [PDF]

, 2010
Spontaneous flame acceleration leading to explosion triggering in open tubes/channels due to wall friction was analytically and computationally studied.
Akkerman, V., Bychkov, V., Eriksson, Lars-Erik, Law, C. K.   +3 more
core   +1 more source

Unveiling the Role of Curvature in Carbon for Improved Energy Release of Ammonium Perchlorate

Advanced Materials, EarlyView.
High‐curvature carbon materials identified via machine learning and simulation can enhance the heat release and combustion performance of ammonium perchlorate. ABSTRACT The catalytic role of carbon curvature in the thermal decomposition of ammonium perchlorate (AP) remains largely unexplored. To address this gap, this study employs machine learning and
Dan Liu, Keliang Song, Haorui Zhang, Zhipeng Liu, Guansong He, Junru Wang, Wenming Yang, Xu Zhao, Zhijian Yang   +8 more
wiley   +1 more source

Stability of pole solutions for planar propagating flames: II. Properties of eigenvalues/eigenfunctions and implications to stability [PDF]

, 2000
In a previous paper (Part I) we focused our attention on pole solutions that arise in the context of flame propagation. The nonlinear development that follows after a planar flame front becomes unstable is described by a single nonlinear PDE which admits
Matalon, Moshe, Vaynblat, Dimitri
core  

The Impacts of Three Flamelet Burning Regimes in Nonlinear Combustion Dynamics [PDF]

, 2018
Axisymmetric simulations of a liquid rocket engine are performed using a delayed detached-eddy-simulation (DDES) turbulence model with the Compressible Flamelet Progress Variable (CFPV) combustion model.
Nguyen, Tuan, Sirignano, William A.
core   +2 more sources

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Study on the influence of restricted distance on fixed-width discrete of discontinuous flame spread

Case Studies in Thermal Engineering
This study investigates the impact of varying distances between vertical walls on the propagation of discrete flames in PMMA (Polymethyl Methacrylate) slabs.
Zhenkun Wu, Min Peng, Jinhu Zhou, Panwen Ma, Dongzi Qin, Guoqing Zhu   +5 more
doaj   +1 more source

Continuous 500-Hz OH-PLIF Measurements in a Hydrogen-Fueled Scramjet Combustor

Frontiers in Physics, 2020
In recent years, significant research attention has focused on scramjet bench-testing using optical measurement techniques to obtain significant experimental data.
Jiangbo Peng, Jiangbo Peng, Zhen Cao, Zhen Cao, Xin Yu, Xin Yu, Shunhua Yang, Yang Yu, Yang Yu, Hongyu Ren, Shunping Zhang, Guang Chang, Guang Chang, Shuang Chen, Yanhui Zhao, Biao Yan, Biao Yan, Ye Luo, Ye Luo   +18 more
doaj   +1 more source

Dynamic Characterization of Candle Flame [PDF]

International Journal of Spray and Combustion Dynamics, 2010
The present work focuses on studying the flickering of a candle placed in a hollow cylindrical glass tube. Variations in flame area and intensity have been studied as the oscillating parameters of the flame with a camera and a Photomultiplier tube (PMT), and results have been found to be indicative of the presence of some well defined peaks in the ...
Suvojit Ghosh, Sirshendu Mondal, Tanmoy Mondal, Achintya Mukhopadhyay, Swarnendu Sen   +4 more
openaire   +1 more source

Unravelling the Secret of Sulfur Confinement and High Sulfur Utilization in Hybrid Sulfur‐Carbons

Advanced Materials, EarlyView.
Thermal condensation of inverse vulcanized sulfur‐carbon hybrids enables a bottom‐up sulfur confinement strategy, in which a protective carbon phase is progressively constructed around sulfur species. The resulting carbon nanodomains covalently tether sulfur chains and stabilize radical intermediates. This integrated architecture effectively suppresses
Tim Horner, Enis Oğuzhan Eren, Elif Begüm Yılmaz, Jiyong Kim, Ernesto Scoppola, Alexandros Vasileiadis, Nadezda V. Tarakina, Markus Antonietti, Paolo Giusto, Evgeny Senokos   +9 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source