[HTML][HTML] Structure and dynamics of highly turbulent premixed combustion

AM Steinberg, PE Hamlington, X Zhao - Progress in Energy and …, 2021 - Elsevier
Turbulent premixed combustion involves simultaneous and mutually interacting fluid,
chemical, and transport phenomena spanning a wide range of spatial and temporal scales …

Helical vortex core dynamics and flame interaction in turbulent premixed swirl combustion: A combined experimental and large eddy simulation investigation

S Taamallah, Y Dagan, N Chakroun… - Physics of …, 2019 - pubs.aip.org
In this study, a combined experimental and Large Eddy Simulation (LES) investigation is
performed to identify the vortical structures, their dynamics, and interaction with a turbulent …

Effect of confinement ratio on flame structure and blow-off characteristics of swirl flames

L Ji, J Wang, W Zhang, R Mao, G Hu… - Experimental Thermal and …, 2022 - Elsevier
Blow-off of swirl flames as well as its mechanism are fundamental issues and attract
continuous attention due to its wide application in modern combustors. This study …

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 …

[HTML][HTML] Lagrangian analysis of enstrophy dynamics in a highly turbulent premixed flame

R Darragh, CAZ Towery, MA Meehan… - Physics of …, 2021 - pubs.aip.org
A Lagrangian analysis approach is used to examine the effects of heat release on the
dynamics of the enstrophy during highly turbulent premixed combustion. The analysis is …

2D-supervised fast neural fluid reconstruction technique for time-resolved volumetric flame reconstruction

F Zhang, W Zhang, S Gong, E Song, Q Lei, X Li… - Aerospace Science and …, 2023 - Elsevier
The volumetric tomography reconstruction technique (VTRT) can calculate and restore the
three-dimensional physical field based on the multi-view projection information of the flame …

A direct numerical simulation study of the influence of flame-generated vorticity on reaction-zone-surface area in weakly turbulent premixed combustion

AN Lipatnikov, VA Sabelnikov, S Nishiki… - Physics of …, 2019 - pubs.aip.org
Direct numerical simulation data obtained from two statistically stationary, one-dimensional,
planar, weakly turbulent, premixed flames are analyzed in order to examine the influence of …

Does flame-generated vorticity increase turbulent burning velocity?

AN Lipatnikov, VA Sabelnikov, S Nishiki… - Physics of …, 2018 - pubs.aip.org
Direct numerical simulation data obtained from a statistically stationary, 1D, planar, weakly
turbulent, premixed flame, which is associated with the flamelet combustion regime, are …

Statistical behaviors of conditioned two-point second-order structure functions in turbulent premixed flames in different combustion regimes

P Brearley, U Ahmed, N Chakraborty, A Lipatnikov - Physics of Fluids, 2019 - pubs.aip.org
The second-order structure functions and their components conditioned upon various events
have been analyzed for unweighted and density-weighted velocities using a Direct …

A lower-dimensional approximation model of turbulent flame stretch and its related quantities with machine learning approaches

J Ren, H Wang, J Xing, K Luo, J Fan - Physics of Fluids, 2020 - pubs.aip.org
Flame stretch and its related quantities are three-dimensional (3D), while most planar
imaging techniques, widely used in turbulent combustion, can only provide lower …