Results 161 to 170 of about 21,455 (208)

Turbulent hydrocarbon jet flames

Progress in Energy and Combustion Science, 1982
Abstract To consider turbulent hydrocarbon jet flames as an ensemble of wrinkled laminar flames gives useful information about details of the combustion process by studying reactive diffusive interfaces. Combined with the conserved scalar approach, non-premixed turbulent jet flames can be computed with satisfactory accuracy.
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Blowout of turbulent jet diffusion flames

Fuel, 2014
Experiments have been performed to determine the blowout of jet diffusion flames with pure fuels, oxygenated fuels, mixed fuels, and diluted fuels. Stability tests were conducted with pure hydrocarbons at the C2 level to determine the effects of structural differences in the fuels.
Douglas Stamps, Sheldon Tieszen
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Turbulent swirling jet diffusion flames

AIAA Journal, 1969
The phenomenological boundary-layer equations describing the flowfield in a turbulent jet diffusion flame with swirl are solved in the von Mises plane. The expressions found are compared with experimental results for three jet flames with different degrees of swirl using semiempirical values of turbulent exchange coefficients in the flame. The combined
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Radiation characteristics and turbulence–radiation interactions in sooting turbulent jet flames

Combustion Theory and Modelling, 2009
The transported PDF method coupled with a detailed gas-phase chemistry, soot model and radiative transfer equation solver is applied to various turbulent jet flames with Reynolds numbers varying from ∼ 6700 to 15100. Two ethylene–air flames and four flames with a blend of methane–ethylene and enhanced oxygen concentration are simulated.
Ranjan S. Mehta, Michael F. Modest, Daniel C. Haworth   +2 more
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Structural characteristics of lifted turbulent-jet flames

Symposium (International) on Combustion, 1989
Instantaneous planar images of the CH4 concentration in a lifted turbulent-jet flame were obtained by collecting Raman-scattered light perpendicular to a thin sheet of laser light passing through the axis of the flame. The instantaneous images were averaged to obtain mean and fluctuating statistics and probability distributions of the CH4 concentration.
R.W. Schefer, M. Namazian, J. Kelly
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Lifted turbulent jet flames

1993
NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document. Experiments were conducted on lifted, turbulent jet diffusion flames. An automated technique using a linear photodiode array was implemented to measure the temporal history of the liftoff height h.
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Eddies in Turbulent Jet Diffusion Flames

Nature, 1953
THE turbulent jet diffusion flame may be defined as a flame in which a high-velocity jet of fuel entrains the combustion air by its own momentum. In such flames the rate of combustion is primarily governed by the rate of mixing once the fuel stream has been heated by re-radiation above an ignition temperature.
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Spark ignition of lifted turbulent jet flames

Combustion and Flame, 2006
This paper presents experiments on ignition and subsequent edge flame propagation in turbulent nonpremixed methane jets in air. The spark position, energy, duration, electrode diameter and gap, and the jet velocity and air premixing of the fuel stream are examined to study their effects on the ignition probability defined as successful flame ...
S AHMED, E MASTORAKOS
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Further experiments on turbulent jet diffusion flames

Symposium (International) on Combustion, 1975
The earlier investigation of Kent and Bilger on the turbulent diffusion flame of a jet of hydrogen in a co-flowing stream of air is extended to give more detailed measurements of the nitric oxide field in the flame. Nitric oxide measurements appear to be particularly sensitive to the sampling method used and the results obtained with a small slender ...
R.W. Bilger, R.E. Beck
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Propagation and fractals of turbulent jet flames

Journal of Propulsion and Power, 1992
Propagation of turbulent jet flames under various flow conditions was characterized using a thin-filament pyrometn technique. The flame-propagation data were analyzed by fractal analysis to predict the turbulent flame vekcity, and the results were compared with measured velocity values.
Tzong H. Chen, Larry P. Goss
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