Results 11 to 20 of about 28,542 (259)
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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Formation of Cellular Flames and Increase in Flame Velocity Generated by Intrinsic Instability.
Transactions of the Japan Society for Aeronautical and Space Sciences, 2002 The formation of cellular flames and the increase in flame velocity generated by intrinsic instability are studied by two-dimensional (2-D) and three-dimensional (3-D) unsteady calculations of reactive flows based on the compressible Navier-Stokes equation.
Satoshi Kadowaki
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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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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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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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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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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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