Premixed flames subjected to extreme turbulence: Some questions and recent answers

JF Driscoll, JH Chen, AW Skiba, CD Carter… - Progress in Energy and …, 2020 - Elsevier
It has been predicted that several changes will occur when premixed flames are subjected to
the extreme levels of turbulence that can be found in practical combustors. This paper is a …

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 …

[HTML][HTML] Flame structure and burning velocity of ammonia/air turbulent premixed flames at high Karlovitz number conditions

Q Fan, X Liu, L Xu, AA Subash, C Brackmann… - Combustion and …, 2022 - Elsevier
This paper presents experimental studies of the structures and burning velocities of
premixed ammonia/air jet flames at high Karlovitz (Ka) number conditions. Simultaneous …

Structure and scalar correlation of ammonia/air turbulent premixed flames in the distributed reaction zone regime

Q Fan, X Liu, X Cai, C Brackmann, M Alden, XS Bai… - Combustion and …, 2022 - Elsevier
Instantaneous structures of turbulent premixed ammonia/air flames on a piloted jet burner
were investigated using simultaneous planar laser-induced fluorescence (PLIF) and …

Turbulent burning velocity and its related statistics of ammonia‐hydrogen‐air jet flames at high Karlovitz number: Effect of differential diffusion

X Cai, Q Fan, XS Bai, J Wang, M Zhang… - Proceedings of the …, 2023 - Elsevier
To clarify the role of differential diffusion in highly turbulent premixed flames, a series of
turbulent premixed ammonia/hydrogen/air flames were investigated using the NH-PLIF …

Statistics of local and global flame speed and structure for highly turbulent H2/air premixed flames

W Song, FEH Perez, EA Tingas, HG Im - Combustion and Flame, 2021 - Elsevier
A statistical analysis is conducted for turbulent hydrogen-air premixed flames at a range of
Karlovitz numbers up to 1,126 by direct numerical simulations (DNS) with detailed chemistry …

Characteristics of laser ignition and spark discharge ignition in a cavity-based supersonic combustor

B An, L Yang, Z Wang, X Li, M Sun, J Zhu, W Yan - Combustion and Flame, 2020 - Elsevier
An experimental study was conducted to compare laser ignition (LI) and spark discharge
ignition (SDI) in an ethylene fueled supersonic combustor operating at a global equivalence …

Contributions of flame thickening and extinctions to a heat release rate marker of intensely turbulent premixed hydrogen-enriched methane-air flames

S Mohammadnejad, Q An, P Vena, S Yun… - Combustion and …, 2021 - Elsevier
Influences of the reaction zone thickening and extinctions on a heat release rate marker of
extremely turbulent hydrogen-enriched methane-air flames are investigated using …

Thick reaction zones in non-flamelet turbulent premixed combustion

S Mohammadnejad, Q An, P Vena, S Yun… - Combustion and …, 2020 - Elsevier
Internal structure of extremely turbulent flames is investigated experimentally using
simultaneous planar laser-induced fluorescence of formaldehyde molecule and hydroxyl …

Instantaneous flame front identification by Mie scattering vs. OH PLIF in low turbulence Bunsen flame

Y Zheng, L Weller, S Hochgreb - Experiments in Fluids, 2022 - Springer
Abstract Simultaneous OH-PLIF and Mie scatter imaging were used to investigate turbulent
premixed flame edge detection under a range of turbulence characteristics on a stabilised …