Results 331 to 340 of about 1,656,529 (387)
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1993
Abstract Unlike premixed flames, diffusion flames do not have a burning velocity. Interest therefore lies in their internal structure, in their rates of energy release, in rates of transport of fuel and oxidizer into the flame (burning rates), and in necessary conditions for their existence and extinction.
Amable Linan, Forman A Williams
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Abstract Unlike premixed flames, diffusion flames do not have a burning velocity. Interest therefore lies in their internal structure, in their rates of energy release, in rates of transport of fuel and oxidizer into the flame (burning rates), and in necessary conditions for their existence and extinction.
Amable Linan, Forman A Williams
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TURBULENT JET DIFFUSION FLAMES
Progress in Energy and Combustion Science, 1976Publisher Summary This chapter discusses the turbulent jet diffusion flames of gaseous fuels. This system is simple compared to that in a diesel or gas turbine engine but nevertheless can throw much light on the mechanisms that are involved in the submodels used in describing the more complex systems.
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Symposium (International) on Combustion, 1989
Planar visualization was employed to study flame structure and low frequency flame oscillation. Two distinct vortices were visualized in the flames studies: large toroidal vortices outside the luminous flame and small roll-up vortices inside the luminous flame.
L.-D. Chen +3 more
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Planar visualization was employed to study flame structure and low frequency flame oscillation. Two distinct vortices were visualized in the flames studies: large toroidal vortices outside the luminous flame and small roll-up vortices inside the luminous flame.
L.-D. Chen +3 more
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Nature, 1951
BURNER flames of unusual structure may be obtained when certain hydrocarbon gases and vapours are burnt in admixture with air or oxygen. Thus, as first noted by Smithells and Ingle1, and later by Smith and Pickering2, the inner cones of the flames may assume the form of a polyhedron, the number of sides of which is dependent upon prevailing conditions,
J. E. GARSIDE, B. JACKSON
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BURNER flames of unusual structure may be obtained when certain hydrocarbon gases and vapours are burnt in admixture with air or oxygen. Thus, as first noted by Smithells and Ingle1, and later by Smith and Pickering2, the inner cones of the flames may assume the form of a polyhedron, the number of sides of which is dependent upon prevailing conditions,
J. E. GARSIDE, B. JACKSON
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Combustion Theory and Modelling, 1999
Recent models of straight diffusion flame edges are extended to consider the effect of a curved edge forming the perimeter of an axisymmetric ‘hole’, where a burning flame surrounds a quenched inner region. For ‘free’ flame-holes (without a heat sink near the axis), at small Damkohler number (Da), the holes grow if the initial radius is large but ...
Vedha Nayagam +2 more
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Recent models of straight diffusion flame edges are extended to consider the effect of a curved edge forming the perimeter of an axisymmetric ‘hole’, where a burning flame surrounds a quenched inner region. For ‘free’ flame-holes (without a heat sink near the axis), at small Damkohler number (Da), the holes grow if the initial radius is large but ...
Vedha Nayagam +2 more
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Combustion Science and Technology, 1973
(1973). Diffusion Flame Stability. Combustion Science and Technology: Vol. 7, No. 6, pp. 241-243.
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(1973). Diffusion Flame Stability. Combustion Science and Technology: Vol. 7, No. 6, pp. 241-243.
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Small, 2019
Similar to graphene, few-layer black phosphorus (BP) features thermal stability, mechanical properties, and characteristic dimension effects, which has potential as a new member of nanofillers for fabricating polymer nanocomposites.
Shuilai Qiu +7 more
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Similar to graphene, few-layer black phosphorus (BP) features thermal stability, mechanical properties, and characteristic dimension effects, which has potential as a new member of nanofillers for fabricating polymer nanocomposites.
Shuilai Qiu +7 more
semanticscholar +1 more source
Progress in Energy and Combustion Science, 1982
Abstract Laminar counterflow diffusion flames are generally referred to as the pure diffusion flame. This paper reviews experimental studies of these counterflow diffusion flames and presents a detailed summary of our present understanding of them.
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Abstract Laminar counterflow diffusion flames are generally referred to as the pure diffusion flame. This paper reviews experimental studies of these counterflow diffusion flames and presents a detailed summary of our present understanding of them.
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Fire Safety Journal, 1981
Nine classic diffusion flames, i.e., combustion systems with initially separate fuel and oxidizer, are synthesized in a search for common dimensionless parameters which may serve as indice of fire hazard. The problems examined are: planar and cylindrical Burke-Schumann; droplet burning; planar and cylindrical stagnant film; and forced, free, mixed, and
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Nine classic diffusion flames, i.e., combustion systems with initially separate fuel and oxidizer, are synthesized in a search for common dimensionless parameters which may serve as indice of fire hazard. The problems examined are: planar and cylindrical Burke-Schumann; droplet burning; planar and cylindrical stagnant film; and forced, free, mixed, and
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Flame structures of H2S—Air diffusion flames
Symposium (International) on Combustion, 1981Diffusion flames of rich hydrogen sulfide-air mixtures were studied by the point to point temperature and comcentration profile method, measuring H 2 S, O 2 , N 2 , SO 2 , H 2 O and H 2 concentrations. Computation of overall reaction rates based on the values measured indicates that the flame is comprised of three distinct zones in which the ...
J. Berner-Cambot +2 more
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