Results 41 to 50 of about 44,661 (206)

Premixed flames propagating freely in tubes [PDF]

, 2015
International audienceThis paper reports an experimental investigation of premixed propane and methane-air flames propagating freely in tubes 1.5 m long and with diameters 54 and 94 mm.
Almarcha, Christophe, Denet, Bruno, Quinard, Joel   +2 more
core   +3 more sources

Flame propagation and burning rates of methane-air in a closed combustion vessel [PDF]

, 2015
The propagation and burning rates of methane-air mixtures were investigated at initial atmospheric pressure with temperature range of 298-302K and equivalence ratio range of 0.8 to 1.3.
Abd. Wahid, Mazlan, Saat, Aminuddin, Suhaimi, Mohd. Suardi   +2 more
core  

Study on gas explosion propagation law in excavation roadway with TBM

Scientific Reports
Gas explosion is one of the five major hazards in mines, with about 36% of such incidents occurring in the excavation working face. Therefore, to investigate the impact of gas explosion propagation laws within excavation roadways, we conducted a ...
Ao Liu, Ke Gao, Runzhi Li, Linquan Tong, Yujiao Liu, Shengnan Li   +5 more
doaj   +1 more source

Flame Enhancement and Quenching in Fluid Flows [PDF]

, 2002
We perform direct numerical simulations (DNS) of an advected scalar field which diffuses and reacts according to a nonlinear reaction law. The objective is to study how the bulk burning rate of the reaction is affected by an imposed flow.
Abel M, Abel M, Alexander Kiselev, Audoly B, Avellaneda M, Berestycki H, Bradley D, Chandrasekhar S, Drazin P G, Fife P C, Kanel Ya, Kolmogorov A N, Leonid Ryzhik, Natalia Vladimirova, Oleg Ruchayskiy, Pelcé P, Peter Constantin, Ronney P D, Taylor G I, Vladimirova N, Volpert A, Williams F A, Zeldovich Ya B   +22 more
core   +2 more sources

Combustion analysis in a natural gas engine with pre-chamber by three-dimensional numerical simulation

Nihon Kikai Gakkai ronbunshu, 2015
Highly efficient natural gas engines have been widely used in wide range of sectors from industry and transportation. However, because combustion process in gas engines with a pre-chamber is very complicated, it is difficult to experimentally investigate
Satoshi HOKIMOTO, Tatsuya KUBOYAMA, Yasuo MORIYOSHI, Toshio YAMADA   +3 more
doaj   +1 more source

Effect of gas composition and initial turbulence on the propagation dynamics of premixed flames of hydrogen-blended natural gas fuel

Case Studies in Thermal Engineering
In order to reduce carbon emissions, the effects of gas composition and initial turbulence on the premixed flame dynamics of hydrogen-blended natural gas were investigated.
Peng Cai, Huan Liu, Yi Liu, Yonghao Zhou, Anfeng Yu, Zhe Yang   +5 more
doaj   +1 more source

Propagation of Avalanches in Mn$_{12}$-acetate: Magnetic Deflagration

, 2005
Local time-resolved measurements of fast reversal of the magnetization of single crystals of Mn12-acetate indicate that the magnetization avalanche spreads as a narrow interface that propagates through the crystal at a constant velocity that is roughly ...
C. Paulsen, E. M. Chudnovsky, E. Zeldov, G. Christou, H. Shtrikman, I. Glassman, J. R. Friedman, L. D. Landau, M. P. Sarachik, N. E. Chakov, Nurit Avraham, R. Gonzalez-Rubio, S. McHugh, Y. Myasoedov, Yoko Suzuki   +14 more
core   +1 more source

Flame Detection for Video-based Early Fire Warning Systems and 3D Visualization of Fire Propagation [PDF]

, 2012
Early and accurate detection and localization of flame is an essential requirement of modern early fire warning systems. Video-based systems can be used for this purpose; however, flame detection remains a challenging issue due to the fact that many ...
Dimitropoulos, Kosmas, Grammalidis, Nikos, Tsalakanidou, Filareti   +2 more
core   +1 more source

Influence of Different Types of Obstacles on the Propagation of Premixed Methane-Air Flames in a Half-Open Tube

Energies, 2017
To understand the propagation characteristics of methane-air deflagration flames and in an obstacle-filled tube, a high-speed color video camera, photoelectric sensors, and pressure transducers were used to test the deflagration flame propagating ...
Quan Wang, Shanghao Liu, Chi-min Shu, Yibin Ding, Zhimin Li   +4 more
doaj   +1 more source

Triple flame structure and diffusion flame stabilization [PDF]

, 1994
The stabilization of diffusion ñames is studied using asymptotic techniques and numerical tools. The configuration studied corresponda to parallel streams of cold oxidizer and fuel initially separated by a splitter píate.
Liñán Martínez, Amable, Poinsot, T., Ruetsch, G., Vervisch, L., Veynante, D.   +4 more
core   +2 more sources