Recent advances in understanding of thermal expansion effects in premixed turbulent flames

VA Sabelnikov, AN Lipatnikov - Annual Review of Fluid …, 2017 - annualreviews.org
When a premixed flame propagates in a turbulent flow, not only does turbulence affect the
burning rate (eg, by wrinkling the flame and increasing its surface area), but also the heat …

Simulation of the flame describing function of a turbulent premixed flame using an open-source LES solver

X Han, AS Morgans - Combustion and Flame, 2015 - Elsevier
Numerical simulations were used to characterise the non-linear response of a turbulent
premixed flame to acoustic velocity fluctuations. The test flame simulated was the bluff body …

Evolution of flame-conditioned velocity statistics in turbulent premixed jet flames at low and high Karlovitz numbers

JF MacArt, T Grenga, ME Mueller - Proceedings of the Combustion Institute, 2019 - Elsevier
Turbulence in low Karlovitz number premixed flames is strongly affected by small-scale
combustion heat release. At low Karlovitz number conditions, flame-normal thermal …

Transition from pulled to pushed fronts in premixed turbulent combustion: theoretical and numerical study

VA Sabelnikov, AN Lipatnikov - Combustion and Flame, 2015 - Elsevier
This paper extends a previous theoretical study (Sabelnikov and Lipatnikov, 2013) of the
influence of countergradient transport (CGT) on the speed of a statistically stationary, planar …

Does density ratio significantly affect turbulent flame speed?

AN Lipatnikov, WY Li, LJ Jiang, SS Shy - Flow, Turbulence and …, 2017 - Springer
In order to experimentally study whether or not the density ratio σ substantially affects flame
displacement speed at low and moderate turbulent intensities, two stoichiometric …

DNS assessment of a simple model for evaluating velocity conditioned to unburned gas in premixed turbulent flames

AN Lipatnikov, VA Sabelnikov, S Nishiki… - Flow, Turbulence and …, 2015 - Springer
Recently, a simple model for evaluating turbulent scalar flux in premixed flames was
developed and validated using six experimental data sets obtained from flames stabilized in …

A DNS study of closure relations for convection flux term in transport equation for mean reaction rate in turbulent flow

AN Lipatnikov, VA Sabelnikov, N Chakraborty… - Flow, turbulence and …, 2018 - Springer
The present work aims at modeling the entire convection flux ρ u W¯ ρuW in the transport
equation for a mean reaction rate ρW¯ ρW in a turbulent flow, which (equation) was recently …

Analysis of algebraic closures of the mean scalar dissipation rate of the progress variable applied to stagnating turbulent flames

HQ Dong, V Robin, A Mura, M Champion - Flow, turbulence and …, 2013 - Springer
In the turbulent premixed reactive flows considered in this study, ie large Damköhler and
Reynolds numbers, the flamelet regime of turbulent combustion applies and the scalar …

Numerical simulation of a turbulent partially premixed flame with inhomogeneous equivalence ratio

A Benarous, D Karmed, A Liazid, M Champion - Fuel, 2014 - Elsevier
Reynolds averaged numerical simulation (RANS) of a turbulent partially premixed flame is
performed using a presumed probability density function (Pdf) approach. The mixture …

Density variations effects in turbulent diffusion flames: modeling of unresolved fluxes

S Serra, V Robin, A Mura… - Combustion Science and …, 2014 - Taylor & Francis
Unresolved fluxes in turbulent diffusion flames are investigated by introducing the specific
volume to analyze the effects of density variations. Unresolved fluxes are found to be related …