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On the mathematical model simplification using constant Lewis number – Impact assessment on heterogeneous char conversion process [PDF]
E3S Web of Conferences, 2021 Reactive systems in a thermochemical conversion domain are modelled considering N-specie, 1-energy and 2-mass conservation equations assuming negligible pressure gradient resulting in N+3 non-linear coupled PDE system with dependency on thermodynamic and
Asheruddin N Mohammed +2 more
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Effects of hydrogen addition and turbulence on ignition and meso-scale flames of propane mixtures
Journal of Thermal Science and Technology, 2022 This study has investigated experimentally the effects of hydrogen addition and turbulence on the ignition and the flame-kernel development characteristics in isotropic and homogeneous turbulence for propane mixtures.
Masaya NAKAHARA +4 more
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Heat-mass transfer model and irreversible heat transfer process analysis of high-humidity exhaust
Meitan xuebao, 2023 In engineering, the efficient extraction of low-grade energy from mine exhaust is a key issue. Based on the heat-mass transfer between high-humidity exhaust and low-temperature spray in the heat recovery diffuser tower, a theoretical model of heat-mass ...
Siyu FAN +7 more
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Mathematics, 2023 One of the practical methods for examining the stability and dynamical behaviour of non-linear systems is weakly non-linear stability analysis. Time-varying gravitational acceleration and triple-diffusive convection play a significant role in the ...
Pervinder Singh +4 more
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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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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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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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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 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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