Results 181 to 190 of about 186,702 (237)
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Symposium (International) on Combustion, 1973
Experimental results are presented for turbulent diffusion flames of a round jet of hydrogen in a co-flowing stream of air. The aim of the work is to provide comprehensive data which will assist in refining the newer and more-powerful theories coming into use.
Robert W. Bilger, J.H. Kent
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Experimental results are presented for turbulent diffusion flames of a round jet of hydrogen in a co-flowing stream of air. The aim of the work is to provide comprehensive data which will assist in refining the newer and more-powerful theories coming into use.
Robert W. Bilger, J.H. Kent
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2015
Nonpremixed combustion is examined for gaseous fuel jets and liquid droplets. The jet diffusion flame structure is analyzed and the characteristic flame height and shape described including the effects of buoyancy and turbulence. Droplet evaporation and combustion in quiescent environments are analyzed and the “d2” law of diffusion-controlled burning ...
Irvin Glassman +2 more
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Nonpremixed combustion is examined for gaseous fuel jets and liquid droplets. The jet diffusion flame structure is analyzed and the characteristic flame height and shape described including the effects of buoyancy and turbulence. Droplet evaporation and combustion in quiescent environments are analyzed and the “d2” law of diffusion-controlled burning ...
Irvin Glassman +2 more
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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 ...
Paul D. Ronney +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 ...
Paul D. Ronney +2 more
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2008
Publisher Summary Diffusion flames are a phenomenon in which fuel and oxidizer come together in a reaction zone through molecular and turbulent diffusion. The fuel may be in the form of a gaseous fuel jet or a condensed medium (either liquid or solid), and the oxidizer may be a flowing gas stream or the quiescent atmosphere.
Richard A. Yetter, Irvin Glassman
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Publisher Summary Diffusion flames are a phenomenon in which fuel and oxidizer come together in a reaction zone through molecular and turbulent diffusion. The fuel may be in the form of a gaseous fuel jet or a condensed medium (either liquid or solid), and the oxidizer may be a flowing gas stream or the quiescent atmosphere.
Richard A. Yetter, Irvin Glassman
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Non-premixed Flames (Diffusion Flames)
2011In many combustion processes, the fuel and oxidizer are separated before entering the reaction zone where they mix and burn. The combustion reactions in such cases are called “non-premixed flames,” or traditionally, “diffusion flames” because the transport of fuel and oxidizer into the reaction zone occurs primarily by diffusion.
Jyh-Yuan Chen +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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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,
B. Jackson, J. E. Garside
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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,
B. Jackson, J. E. Garside
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1977
Publisher Summary This chapter is dedicated to the discussion of diffusion flames. Most practical systems are mixing-rate-controlled and lead to diffusion flames in which fuel and oxidizer come together in a reaction zone through molecular and turbulent diffusion.
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Publisher Summary This chapter is dedicated to the discussion of diffusion flames. Most practical systems are mixing-rate-controlled and lead to diffusion flames in which fuel and oxidizer come together in a reaction zone through molecular and turbulent diffusion.
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Instability of diffusion flames
Symposium (International) on Combustion, 1996The constant frequency oscillation of buoyant jet diffusion flames is a phenomenon that has been studied extensively during the past three decades. In recent experimental and theoretical works, the coherent flow field and flame structures were analyzed successfully.
K. Neemann +3 more
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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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