Topic
Diffusion flame
About: Diffusion flame is a research topic. Over the lifetime, 9266 publications have been published within this topic receiving 233522 citations.
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TL;DR: In this paper, premixed and non-premixed flamelet-generated manifolds have been constructed and applied to large-eddy simulation of the piloted partially premixed turbulent flames Sandia Flame D and F. The results obtained for flame D are satisfactory, but despite the unsteadiness of the LES, the extinction measured in flame F is not properly captured.
244 citations
01 Jan 1965
TL;DR: In this paper, the authors investigated the speed of a premixed flame propagating along the interface between a layer of methane and air and found that the flame speed depended on the total quantity of methane present and its distribution in the layer.
Abstract: The flame propagating along the interface between a layer of methane and air has been investigated using two techniques. With a flame propagating along a layer, the flame speed was constant at 6 ft/sec, and the volume of flame depended on the total quantity of methane present and its distribution in the layer. The flame speed has been related to the burning velocity of a stoichiometric premixed flame, by observing the movements of gas immediately ahead of the flame front. Flame speed was constant except when the radius of the advancing flame front was very small. In both series of experiments, the flame zone could be divided into three regions, a premixed flame propagating through the 5% to 15% methane mixture, a diffusion flame separating the methane-rich from the air-rich combustion products, and a convection flame, where the flame shape is controlled by displacement of methane by the buoyant combustion products.
244 citations
TL;DR: In this paper, the heat recirculation in a porous burner is analyzed using a one-dimensional time-dependent formulation with complete chemistry, where heat is recirculated through solid conduction and solid-to-solid radiation from the matrix downstream of a flame to the matrix upstream of the flame.
241 citations
01 Jan 1991
241 citations
TL;DR: In this paper, the formation of soot particles is regarded as a result of a branched-chain process and of the destruction of active particles on the surface of the soot particle being formed.
240 citations