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 …

Fractal flame structure due to the hydrodynamic Darrieus-Landau instability

R Yu, XS Bai, V Bychkov - Physical Review E, 2015 - APS
By using large scale numerical simulations, we obtain fractal structure, which develops at
originally planar flame fronts due to the hydrodynamic Darrieus-Landau (DL) instability …

Analysis of high-speed combustion regimes of hydrogen jet in supersonic vitiated airstream

A Mura, A Techer, G Lehnasch - Combustion and Flame, 2022 - Elsevier
Highly-resolved reactive simulations of a hydrogen jet injected into a transverse supersonic
flow of vitiated air at Mach 2 are conducted. The operating conditions are chosen to be …

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 …

Thin reaction zones in constant-density turbulent flows at low Damköhler numbers: Theory and simulations

VA Sabelnikov, R Yu, AN Lipatnikov - Physics of Fluids, 2019 - pubs.aip.org
Propagation of a single-reaction wave in a constant-density turbulent flow is studied by
considering reaction rates that depend on the reaction progress variable c in a highly …

DNS study of dependence of bulk consumption velocity in a constant-density reacting flow on turbulence and mixture characteristics

R Yu, AN Lipatnikov - Physics of Fluids, 2017 - pubs.aip.org
3D Direct Numerical Simulation (DNS) study of propagation of a single-reaction wave in
forced, statistically stationary, homogeneous, isotropic, and constant-density turbulence was …

Direct numerical simulation study of statistically stationary propagation of a reaction wave in homogeneous turbulence

R Yu, AN Lipatnikov - Physical Review E, 2017 - APS
A three-dimensional (3D) direct numerical simulation (DNS) study of the propagation of a
reaction wave in forced, constant-density, statistically stationary, homogeneous, isotropic …

Modelling of the turbulent burning velocity based on Lagrangian statistics of propagating surfaces

J You, Y Yang - Journal of Fluid Mechanics, 2020 - cambridge.org
Modelling of the turbulent burning velocity based on Lagrangian statistics of propagating
surfaces Page 1 J. Fluid Mech. (2020), vol. 887, A11. c The Author(s), 2020. Published by …