Results 271 to 280 of about 13,168,725 (351)
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, 2020
In this study we clarify the role of differential diffusion characterized by effective Lewis number, Leeff, on the self-similar accelerative propagation and the associated turbulent burning velocity of turbulent expanding flames.
Xiao Cai +5 more
semanticscholar +1 more source
In this study we clarify the role of differential diffusion characterized by effective Lewis number, Leeff, on the self-similar accelerative propagation and the associated turbulent burning velocity of turbulent expanding flames.
Xiao Cai +5 more
semanticscholar +1 more source
, 2020
The flame-wall interaction in a quasi-steady configuration, where a statistically planar premixed flame is pushed by the inflow of unburned reactants and stabilizes at a distance away from the wall, has been analyzed for different fuel Lewis numbers and ...
I. Konstantinou +2 more
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The flame-wall interaction in a quasi-steady configuration, where a statistically planar premixed flame is pushed by the inflow of unburned reactants and stabilizes at a distance away from the wall, has been analyzed for different fuel Lewis numbers and ...
I. Konstantinou +2 more
semanticscholar +1 more source
Proceedings of the Combustion Institute, 2019
This study measures high-pressure turbulent burning velocities (ST) of spherical expanding flames for various liquid and gaseous fuel/air mixtures with different effective Lewis number (Le), i.e.
M. T. Nguyen, D. Yu, S. Shy
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This study measures high-pressure turbulent burning velocities (ST) of spherical expanding flames for various liquid and gaseous fuel/air mixtures with different effective Lewis number (Le), i.e.
M. T. Nguyen, D. Yu, S. Shy
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The Lewis number under supercritical conditions
International Journal of Heat and Mass Transfer, 1999zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Harstad, K., Bellan, J.
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On the effective Lewis number formulations for lean hydrogen/hydrocarbon/air mixtures
International Journal of Hydrogen Energy, 2013N. Bouvet +3 more
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The Lewis number in reacting systems
Chemical Engineering Science, 1966Abstract A single diffusion coefficient, D ′ applicable to steady-state processes in both equilibrium and non-equilibrium, multicomponent reacting systems is presented. This diffusion coefficient can be used to define the frozen Lewis number in its conventional form.
Christopher C. Shih, David M. Mason
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Fingering instability in nonadiabatic low-Lewis-number flames
Physical Review E, 1995Employing the formal similarity between the dispersion relations for the hydrodynamic (Darrieus-Landau) and the diffusive instabilities at the quenching threshold, a phenomenological model for the nonlinear evolution of the near-limit premixed flame is proposed.
, Frankel, , Sivashinsky
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The Physics of Fluids, 2019
For premixed combustion in channels and tubes with one end open, when a flame is ignited at the centerline at the closed end of the pipe and it propagates toward the open one, significant flame acceleration occurs at an early stage of the combustion ...
Mohammed H. Alkhabbaz +3 more
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For premixed combustion in channels and tubes with one end open, when a flame is ignited at the centerline at the closed end of the pipe and it propagates toward the open one, significant flame acceleration occurs at an early stage of the combustion ...
Mohammed H. Alkhabbaz +3 more
semanticscholar +1 more source
Lewis number effects on turbulent burning velocity
Symposium (International) on Combustion, 1985Experimental values of turbulent burning velocities for propane, hydrogen and iso-octane mixtures with air are reported under conditions of high turbulence and high turbulent Reynolds number. The measurements were made by the double kernel method during explosions in a fan-stirred bomb, with four fans, capable of speeds of up to 10,000 rpm.
R.G. Abdel-Gayed +3 more
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Lewis-number effects on edge-flame propagation
Journal of Fluid Mechanics, 2002Activation-energy asymptotics is employed to explore effects of the Lewis number, the ratio of thermal to fuel diffusivity, in a one-dimensional model of steady motion of edges of reaction sheets. The propagation velocity of the edge is obtained as a function of the relevant Damköhler number, the ratio of the diffusion time to the chemical time ...
Nayagam, Vedha, Williams, F. A.
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