Towards the distributed burning regime in turbulent premixed flames

AJ Aspden, MS Day, JB Bell - Journal of fluid mechanics, 2019 - cambridge.org
Three-dimensional numerical simulations of canonical statistically steady, statistically planar
turbulent flames have been used in an attempt to produce distributed burning in lean …

Experimental study of the influence of Lewis number, laminar flame thickness, temperature, and pressure on turbulent flame speed using hydrogen and methane fuels

HY Hsieh, SM Mousavi, AN Lipatnikov… - Proceedings of the …, 2024 - Elsevier
To experimentally explore the influence of Lewis number L e, laminar flame thickness δ L,
pressure P, and unburned gas temperature T u on turbulent flame speed ST, a set of …

An experimental study of the influence of Lewis number on turbulent flame speed at different pressures

AN Lipatnikov, YR Chen, SS Shy - Proceedings of the Combustion Institute, 2023 - Elsevier
To explore effects of pressure on the magnitude of the influence of differences in molecular
transport coefficients on turbulent flame speed ST, experiments with statistically spherical …

A priori DNS study of applicability of flamelet concept to predicting mean concentrations of species in turbulent premixed flames at various Karlovitz numbers

AN Lipatnikov, VA Sabelnikov… - Combustion and …, 2020 - Elsevier
Complex-chemistry direct numerical simulation (DNS) data obtained earlier from lean
hydrogen-air flames associated with corrugated flame (case A), thin reaction zone (case B) …

Effect of non-ambient pressure conditions and Lewis number variation on direct numerical simulation of turbulent Bunsen flames at low turbulence intensity

R Rasool, N Chakraborty, M Klein - Combustion and Flame, 2021 - Elsevier
The instantaneous flame front structure of high pressure turbulent premixed Bunsen flames
has been analyzed for a wide range of characteristic Lewis numbers using a new Direct …

Simple criterion of importance of laminar flame instabilities in premixed turbulent combustion of mixtures characterized by low Lewis numbers

J Chomiak, AN Lipatnikov - Physical Review E, 2023 - APS
By (i) highlighting the mitigation effect of strain rates on laminar flame instabilities and (ii)
comparing peak growth rates of laminar flame instabilities with strain rates generated by …

Insights into the bending effect in premixed turbulent combustion using the flame surface density transport

U Ahmed, N Chakraborty, M Klein - Combustion Science and …, 2019 - Taylor & Francis
The bending effect of turbulent flame speed variation (ie, the deviation from the linear
increase of flame speed with increasing root-mean-square turbulent velocity fluctuation) has …

Structures of turbulent premixed flames in the high Karlovitz number regime–DNS analysis

T Nilsson, H Carlsson, R Yu, XS Bai - Fuel, 2018 - Elsevier
Lean premixed turbulent methane-air flames have been investigated using direct numerical
simulations (DNS) for different Karlovitz numbers (Ka), ranging from 65 to 3350. The flames …

A DNS study of extreme and leading points in lean hydrogen-air turbulent flames–part I: local thermochemical structure and reaction rates

HC Lee, P Dai, M Wan, AN Lipatnikov - Combustion and Flame, 2022 - Elsevier
Abstract A Direct Numerical Simulation (DNS) study of statistically one-dimensional and
planar, lean complex-chemistry hydrogen-air flames characterized by a low Lewis number L …

Effects of turbulent length scale on the bending effect of turbulent burning velocity in premixed turbulent combustion

AR Varma, U Ahmed, M Klein, N Chakraborty - Combustion and Flame, 2021 - Elsevier
The effects of turbulent integral length scale to flame thickness ratio on the bending effect of
turbulent burning velocity variation have been analysed based on a three-dimensional …