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Study on flame fractal characteristics of coal dust explosion at the decompression position of Hartmann tube [PDF]
Scientific ReportsThe explosion of coal dust is powerful and has a wide range of spread, which can easily cause mass death and injury. In this paper, the flame microstructure and propagation characteristics of coal dust explosion are recorded by high-speed photography ...
Zemiao Yang, Ke Gao, Yinhui Wang
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Journal of Thermal Science and Technology, 2021 Effects of pressure and heat loss on the unstable motion of cellular-flame fronts in hydrogen-air lean premixed flames were numerically investigated. We adopted the reaction mechanism for hydrogen-oxygen combustion, modeled with seventeen reversible ...
Satoshi KADOWAKI +5 more
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Improvement of Municipal Solid Waste Syngas Premixed Flame with Cellular Structure on a Flat Burner
Energies, 2023 This research was conducted to study the flame instability of syngas derived from raw municipal solid waste (MSW) and its potential as a natural gas (NG) replacement in power generation. MSW syngas is a mixture of various components such as methane (CH4),
Amornrat Kaewpradap +4 more
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Thermal-expansion induced cellular flames [PDF]
Combustion and Flame, 1982 Abstract This paper is devoted to a study of the nonlinear evolution of a disturbed plane flame front in a hydrodynamic instability regime induced by thermal expansion of a burned gas. It is shown that, in sufficiently small-scale flames, spontaneous instability appears in the guise of stationary wide-spaced irregular folds.
Michelson, D.M., Sivashinsky, G.I.
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Comptes Rendus. Mécanique, 2023 The initial mechanism of cellular instabilities on the flame surface was investigated experimentally. Firstly, mono-dispersed ethanol droplets were created via the Wilson cloud principle in a spherical combustion chamber, and aerosol ethanol/air flame ...
Kaya Eyice, Deniz +4 more
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Burner-stabilized cellular flames [PDF]
Quarterly of Applied Mathematics, 1990 We consider a model that governs the behavior of a premixed flame anchored on a flat burner. We show that a steady planar flame is stable for Lewis numbers L L in the interval L l > L > L u
David O. Olagunju, Bernard J. Matkowsky
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Nihon Kikai Gakkai ronbunshu, 2023 This study focused on the biogas-air premixed flames formed on a flat burner under the conditions of oxygen enrichment and hydrogen addition to improve the combustion characteristics of biogas-air premixtures.
Yui AKAGAWA +4 more
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Journal of Thermal Science and Technology, 2021 In this paper, the characteristics of hydrogen-propane-butane-air lean premixed flames on a flat flame burner were experimentally studied. To elucidate the shape and fluctuation of premixed flames, the cell width, RMS of fluctuation, peak frequency and ...
Satoshi NAKATSURU +5 more
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Nihon Kikai Gakkai ronbunshu, 2020 Unstable behavior of hydrogen-air lean premixed flames was studied by numerical calculations of two-dimensional unsteady reactive flow to clarify the effects of unburned-gas temperature, heat loss and scale. We adopted the numerical model containing the
Satoshi KADOWAKI +4 more
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Nihon Kikai Gakkai ronbunshu, 2021 The effects of steam addition on the unstable behavior of hydrogen-air lean premixed flames under the adiabatic and non-adiabatic conditions were investigated using numerical calculations.
Taisei FURUYAMA +4 more
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