Results 271 to 280 of about 52,072 (307)

Edge-Flames and Their Stability

Combustion Science and Technology, 1996
Flame sheets that arise in non-premixed combustion often have edges. The leading edge of a flame spreading over a fuel-bed, solid or liquid, is one example. The edge of a hemi-spherical candle flame in microgravity is another. We construct a one-dimensional model which contains some of the essential physics of these edge-flames, and use this model to ...
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FLAME STABILITY WITH ELLIPTICAL NOZZLESIN A CROSSFLOW

Combustion Science and Technology, 2004
A subscaled flaring system was set up to investigate the effects of elliptical nozzles on flame stabilities of flares in a crossflow for a range of operating conditions. The work presents the experimental results of natural gas flames issuing from circular and different aspect ratios (major/minor axis) elliptical nozzles with discharge areas of 16.4 ...
G. P. Song, N. Papanikolaou, A. A. Mohamad   +2 more
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Acceleration Effects on the Stability of Flame Propagation

SIAM Journal on Applied Mathematics, 1979
We consider the effect of acceleration on the diffusional thermal instability of a plane flame front in a premixed gaseous mixture. We recall that the diffusional thermal instability occurs if the Lewis number L of the mixture is less than a critical value $L_0 $.
Matkowsky, B. J., Sivashinsky, G. I.
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Propagating Flames and their Stability

1984
Viewed on a hydrodynamical scale, a flame may be considered as a surface of discontinuity, separating burned from unburned gas. Unlike earlier treatments, which ignored the flame structure, the present study accounts for the interaction of the fluid flow with the transport processes and chemical reactions occurring inside the thin flame zone.
M. Matalon, B. J. Matkowsky
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Diffusion Flame Stability

Combustion Science and Technology, 1973
(1973). Diffusion Flame Stability. Combustion Science and Technology: Vol. 7, No. 6, pp. 241-243.
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Experimental studies of flame stability limits of biogas flame

Energy Conversion and Management, 2012
Abstract Flame stability of premixed biogas flame for Reference Test Burner (RTB) was investigated. In this study, six kinds of test gases were used to simulate biogas in which CO2 volume fraction varied from 30% to 45%. A series of experiments were conducted on two RTBs with different port diameters and at different outlet unburned mixture ...
Wanneng Dai, Chaokui Qin, Zhiguang Chen, Chao Tong, Pengjun Liu   +4 more
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Stability of the Porous Plug Burner Flame

SIAM Journal on Applied Mathematics, 1983
Summary: We examine the linear stability of a premixed flame attached to a porous plug burner, using activation energy asymptotics. A dispersion relation is obtained which defines the stability boundaries in the wave-, Lewis- number plane, and the movement of these boundaries is followed as the mass flux is reduced below the adiabatic value and the ...
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Mechanism of Flame Stabilization in Turbulent, Lifted-Jet Flames

Combustion and Flame, 1998
Particle image velocimetry was used to study the velocity field in the stabilization region of lifted, turbulent CH 4 -jet flames over a range of Reynolds numbers from 7000 to 19,500. Measured velocities at the flame base are considerably below the turbulent flame speeds derived from previous studies and show a dependence on the Reynolds number.
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Flame Stabilization

2020
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The influence of flame holder temperature on flame stabilization

Symposium (International) on Combustion, 1953
M.J. Russi, I. Cornet, R. Cornog
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