A consistent flamelet formulation for non-premixed combustion considering differential diffusion effects

H Pitsch, N Peters - Combustion and flame, 1998 - Elsevier
A flamelet formulation for non-premixed combustion that allows an exact description of
differential diffusion has been developed. The main difference to previous formulations is the …

The influence of water on extinction and ignition of hydrogen and methane flames

R Seiser, K Seshadri - Proceedings of the Combustion Institute, 2005 - Elsevier
The influence of water vapor on critical conditions of extinction and autoignition of premixed
and nonpremixed flames is investigated. The fuels tested are hydrogen (H2) and methane …

Effects of non-unity Lewis number of gas-phase species in turbulent nonpremixed sooting flames

A Attili, F Bisetti, ME Mueller, H Pitsch - Combustion and Flame, 2016 - Elsevier
Turbulence statistics from two three-dimensional direct numerical simulations of planar n-
heptane/air turbulent jets are compared to assess the effect of the gas-phase species …

Extinction of diffusion flames with nonunity Lewis numbers

JS Kim, FA Williams - Journal of engineering mathematics, 1997 - Springer
Quasisteady extinction of diffusion flames with nonunity Lewis numbers is analyzed for
counterflow diffusion flames in the diffusion-flame regime of activation-energy asymptotics …

Diffusional-thermal instability of diffusion flames

JS Kim, FA Williams, PD Ronney - Journal of Fluid mechanics, 1996 - cambridge.org
The diffusional–thermal instability, which gives rise to striped quenching patterns that have
been observed for diffusion flames, is analysed by studying the model of a one-dimensional …

Analytical development of a model for counter-flow non-premixed flames with volatile biofuel particles considering drying and vaporization zones with finite …

M Bidabadi, P Panahifar, S Sadeghi - Fuel, 2018 - Elsevier
Non-premixed flames are extensively used in different industrial combustion systems such
as gas turbines and coal furnaces. Therefore, reliable theoretical modelling of these flames …

Extinction of counterflow diffusion flames with radiative heat loss and nonunity Lewis numbers

HY Wang, WH Chen, CK Law - Combustion and Flame, 2007 - Elsevier
The structure and extinction characteristics of counterflow diffusion flames with flame
radiation and nonunity Lewis numbers of the fuel and oxidant are examined using multiscale …

An asymptotic assessment of non-premixed flames fed with porous biomass particles in counter-flow configuration considering the effects of thermal radiation and …

H Rasam, M Nematollahi, S Sadeghi, M Bidabadi - Fuel, 2019 - Elsevier
In this research, a comprehensive mathematical analysis is conducted to evaluate the effects
of thermal radiation, porosity and thermophoresis on combustion characteristics of multi …

Ignition in an unsteady mixing layer subject to strain and variable pressure

A Linán, FA Williams - Combustion and flame, 1993 - Elsevier
A general formulation is given for ignition in nonpremixed systems involving time-dependent
mixing of fuel and oxidizer streams that experience both strain and time-varying pressure …

Analytical study of transient counter-flow non-premixed combustion of biomass in presence of thermal radiation

MF Farahani, S Akbari, S Sadeghi, M Bidabadi… - Renewable Energy, 2020 - Elsevier
In this study, the transient behavior of a counter-flow non-premixed combustion of dry
biomass particles under thermal radiation was modeled analytically. Unsteady conservation …