Results 131 to 140 of about 217 (162)

The structure of toluene-doped counterflow gaseous diffusion flames

Combustion and Flame, 2012
Abstract The structure of gaseous counterflow diffusion flames perturbed with the addition of hundreds of ppm of prevaporized toluene is studied in two distinct flame environments: a blue methane flame stabilized on the fuel side of the gas stagnation plane and an incipiently sooting ethylene flame stabilized on the oxidizer side.
Francesco Carbone, Alessandro Gomez
openaire   +1 more source

A soot map for methane-oxygen counterflow diffusion flames

Combustion Science and Technology, 2003
We report on the development of a soot map that separates non-sooting from sooting regions of laminar, counterflow, methane-oxygen-nitrogen diffusion flames at atmospheric pressure. Soot formation is studied at a constant global strain rate of 20 s m 1 as a function of the amounts of methane (0-100%) in the fuel stream and of oxygen (0-100%) in the ...
Sameer V. Naik, Normand M. Laurendeau, James A. Cooke, Mitchell D. Smooke   +3 more
openaire   +1 more source

Response of counterflow diffusion flames to oscillating strain rates

Combustion and Flame, 1995
Abstract The response of counterflow flames to oscillating strain rates is analyzed by using large activation energy asymptotics, as a potential application to turbulent combustion and acoustic instability of rocket engines. The characteristic oscillation time of practical interest is found to be of the same order as the characteristic diffusion time
H.G. Im, C.K. Law, J.S. Kim, F.A. Williams   +3 more
openaire   +1 more source

Soret effects in laminar counterflow spray diffusion flames

Combustion Theory and Modelling, 2002
The impact of vapour-phase Ludwig–Soret effects on the structure of steady laminar counterflow spray diffusion flames is investigated numerically using complex chemistry and multicomponent molecular transport laws of Chapman-Enskog kinetic theory. These Ludwig–Soret effects, which tend to drive light molecular species towards hot regions and heavy ...
R Ben Dakhlia, V Giovangigli, D E Rosner
openaire   +1 more source

Extinction of counterflow diffusion flames under velocity oscillations

Symposium (International) on Combustion, 1996
The effects of sinusoidal velocity oscillation on counterflow diffusion flames of diluted methane against air were experimentally and computationally investigated. Experimentally, the unsteady flow characteristics as well as the local extinction strain rates were measured over extensive ranges in frequency and amplitude of the flow oscillation by using
J.S. Kistler, C.J. Sung, T.G. Kreut, C.K. Law, M. Nishioka   +4 more
openaire   +1 more source

Sooting Characteristics and Modeling in Counterflow Diffusion Flames

2013
Soot formation is one of the most complex phenomena in combustion science and an understanding of the underlying physico-chemical mechanisms is important. This work adopted both experimental and numerical approaches to study soot formation in laminar counterfl ow diffusion flames.
openaire   +2 more sources

Counterflow diffusion flame under reduced gravity

Journal of Visualization, 2003
Shuichi Torii, Toshiaki Yano, H. Maeda
openaire   +1 more source

The Effects of CO2 Additional on Flame Characteristics in the CH4/N2/O2 Counterflow Diffusion Flame

Molecules, 2021
Wang Jingfu, Ying Chen, Xiaolei Zhang
exaly  

Temperature imaging of Counterflow Diffusion Flames by using TDLAS Tomography

2021 IEEE International Conference on Imaging Systems and Techniques (IST), 2021
Zhaoyu Cai, Zhang Cao 0001, Heng Xie, Lijun Xu 0001   +3 more
openaire   +1 more source

Effects of n-Butanol Addition on the Combustion Characteristics of n-Heptane Counterflow Diffusion Flame at Elevated Pressure

Fire, 2022
Dong Liu, Yaoyao Ying
exaly