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Measurements of flame length and flame angle in an inclined trench
Fire Safety Journal, 1992Abstract Measurements of flame length and flame angle from fire sources mounted in a tiltable trench are reported. The results from three different source configurations are presented and discussed. Empirical correlations between rate of heat release of the fire source and flame length for the experimental configurations have the general form L ∝ Qn.
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Combustion and Flame, 2015
Abstract The definition of the flame displacement speed (FDS), often used to characterize the dynamical properties of premixed flames, is generally ambiguous because, except for a steadily propagating planar flame, the mass flow rate through the combustion region varies with distance through the flame and one is therefore faced with the difficulty of
George K. Giannakopoulos +4 more
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Abstract The definition of the flame displacement speed (FDS), often used to characterize the dynamical properties of premixed flames, is generally ambiguous because, except for a steadily propagating planar flame, the mass flow rate through the combustion region varies with distance through the flame and one is therefore faced with the difficulty of
George K. Giannakopoulos +4 more
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Scalar length scale variations in premixed turbulent flames
Symposium (International) on Combustion, 1985A general formulation and closure of a two-point two-time covariance balance equation is applied to the problem of calculating scalar length scale variations in premixed turbulent flames. Situations are considered in which the turbulent combustion zone consists either of a single thin wrinkled flame or of packets of reactants and products separated ...
K.N.C. Bray, Paul A. Libby, J.B. Moss
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Dissipation length scales in turbulent nonpremixed jet flames
Combustion and Flame, 2007Line imaging of Raman/Rayleigh/CO-LIF is used to investigate the energy and dissipation spectra of turbulent fluctuations in temperature and mixture fraction in several flames, including CH{sub 4}/H{sub 2}/N{sub 2} jet flames at Reynolds numbers of 15,200 and 22,800 (DLR-A and DLR-B) and piloted CH{sub 4}/air jet flames at Reynolds numbers of 13,400 ...
Guanghua Wang +2 more
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Length of Natural Gas-Oxygen Non-Premixed Flames
Combustion Science and Technology, 2001Experiments have been performed on turbulent, non-premixed, 25 kW, natural gas-oxygen flames and are based on measurements of the flame length by OH emission observation. Various gas tube diameters have been used so that the ratio of flux mass by unit of surface ranges from 0.5 to 2.5.
J.C. SAUTET +3 more
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Visible length of vertical free turbulent diffusion flames
Combustion and Flame, 1978Abstract An experimental study has been made, which together with literature results covers the practically accessible range of operation from forced convection to natural convection. General correlations are given for predicting flame length over this range. The lower Reynolds ratio limit of the correlations has been determined.
H.A. Becker, D. Liang
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Dilution effects on laminar jet diffusion flame lengths
Proceedings of the Combustion Institute, 2019Abstract Many studies have examined the stoichiometric lengths of laminar gas jet diffusion flames. However, these have emphasized normal flames of undiluted fuel burning in air. Many questions remain about the effects of fuel dilution, oxygen-enhanced combustion, and inverse flames.
Zhengyang Wang +2 more
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Flame length of non-buoyant turbulent slot flame
Proceedings of the Combustion Institute, 2019Wei Gao +8 more
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Fuel and Energy Abstracts, 1996
Computations are for three modes of spherical laminar flame propagation: explosion, implosion, and stationary. The reduced kinetic, C1, scheme of Mauss and Peters is employed for a range of equivalence ratios under atmospheric conditions, with flame propagation at constant pressure. Save for the richest mixture, the scheme is fully adequate for present
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Computations are for three modes of spherical laminar flame propagation: explosion, implosion, and stationary. The reduced kinetic, C1, scheme of Mauss and Peters is employed for a range of equivalence ratios under atmospheric conditions, with flame propagation at constant pressure. Save for the richest mixture, the scheme is fully adequate for present
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