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Triple flames in mixing layers with nonunity lewis numbers [PDF]
Symposium (International) on Combustion, 1998 The present paper is devoted to the study of the effects of nonunity Lewis numbers on triple-flame propagation in nonuniform mixtures. For definiteness, the case of a strained reactive mixing layer is considered. The fuel and oxidizer that are fed to the mixing layer are allowed to have different initial temperatures.
Daou, J., Liñán Martínez, Amable
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Experimental Study on Local Flame Properties of Hydrogen Added Hydrocarbon Premixed Turbulent Flames
Journal of Thermal Science and Technology, 2009 This experimental study is performed to investigate directly the local flame properties of turbulent propagating flames at the same weak turbulence condition (u'/SL0=1.4), in order to clarify basically the influence of the addition of hydrogen to ...
Masaya NAKAHARA +2 more
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An Analysis of Local Quantities of Turbulent Premixed Flames Using DNS Databases
Journal of Thermal Science and Technology, 2008 A numerical analysis was performed using DNS (Direct Numerical Simulation) databases of statistically steady and fully developed turbulent premixed flames with different density ratios and with different Lewis numbers.
Kazuya TSUBOI +2 more
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High Lewis Number Combustion Wavefronts: A Perturbative Melnikov Analysis [PDF]
SIAM Journal on Applied Mathematics, 2007 The wavefronts associated with a one-dimensional combustion model with Arrhenius kinetics and no heat loss are analyzed within the high Lewis number perturbative limit. This situation, in which fuel diffusivity is small in comparison to that of heat, is appropriate for highly dense fluids.
Sanjeeva Balasuriya +3 more
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Effect of Stretch on Local Burning Velocity of Premixed Turbulent Flames
Journal of Thermal Science and Technology, 2007 The effect of positive stretch on the local flame properties of turbulent propagating flames in the flamelet regime was investigated experimentally for methane-, hydrogen- and propane-air mixtures with lean and rich having nearly the same laminar burning
Masaya NAKAHARA +3 more
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South African Journal of Chemical Engineering, 2022 Double diffusive flow under mixed convection has become a significant area of research. This study aims to evaluate the Lewis number effect in such a double-diffusive problem in a roof-based air-ventilated system.
C.N. Mithun +4 more
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Journal of Thermal Science and Technology, 2011 The effects of the unburned-gas temperature and Lewis number on the intrinsic instability of high-temperature premixed flames under the constant-enthalpy conditions were investigated by two-dimensional unsteady calculations of reactive flows.
Satoshi KADOWAKI +2 more
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Journal of Fluid Science and Technology, 2013 We studied numerically the intrinsic instability of high-temperature premixed flames, where the burned-gas temperature was constant, under the conditions of constant density and constant pressure in the unburned gas.
Satoshi KADOWAKI +2 more
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Selective Chemical Filters for VOF3: Tailoring MgF2 Filter Selectivity through Surface Chemistry
Surfaces, 2023 In order to synthesize chemical filters for the selective removal of volatile fluorides, commercial magnesium fluoride MgF2 with high specific surface area (HSA) was investigated.
Laurent Jouffret +5 more
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The Behavior of Lewis Number in Finned Tube Cooling Coils under Highly Moist Inlet Air Conditions
International Journal of Technology, 2016 The objective of this research was to study the effects of highly moist inlet air conditions such as temperature, relative humidity, and frontal air velocity on the value of the Lewis number (Le) in the cooling and dehumidifying process of air.
Teerachai Howongsakun +3 more
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