Direct numerical simulations of a high Karlovitz number laboratory premixed jet flame–an analysis of flame stretch and flame thickening

H Wang, ER Hawkes, JH Chen, B Zhou, Z Li… - Journal of Fluid …, 2017 - cambridge.org
This article reports an analysis of the first detailed chemistry direct numerical simulation
(DNS) of a high Karlovitz number laboratory premixed flame. The DNS results are first …

Review of novel combustion techniques for clean power production in gas turbines

MA Nemitallah, SS Rashwan, IB Mansir… - Energy & …, 2018 - ACS Publications
The tremendous increase in energy demand due to increased population and rapid
economics results in an increased level of atmospheric pollutants and global warming. The …

Thin reaction zone and distributed reaction zone regimes in turbulent premixed methane/air flames: Scalar distributions and correlations

B Zhou, C Brackmann, Z Wang, Z Li, M Richter… - Combustion and …, 2017 - Elsevier
A series of premixed turbulent methane/air jet flames in the thin reaction zone (TRZ) and
distributed reaction zone (DRZ) regimes were studied using simultaneous three-scalar high …

Experimental study of the effects of free stream turbulence on characteristics and flame structure of bluff-body stabilized conical lean premixed flames

BR Chowdhury, BM Cetegen - Combustion and Flame, 2017 - Elsevier
This article describes an experimental investigation of the effect of different levels of free
stream turbulence intensity on the structure of an unconfined, lean propane–air flame …

A revisit to the validity of flamelet assumptions in turbulent premixed combustion and implications for future research

S Kheirkhah, ÖL Gülder - Combustion and Flame, 2022 - Elsevier
The flamelet assumption has been widely used for analysis and modeling of turbulent
premixed flames over the past decades. Despite its popularity, validity of this assumption …

Internal structure of hydrogen-enriched methane–air turbulent premixed flames: Flamelet and non-flamelet behavior

S Mohammadnejad, P Vena, S Yun, S Kheirkhah - Combustion and Flame, 2019 - Elsevier
Internal structure of pure and hydrogen-enriched methane–air flames were investigated
experimentally, using simultaneous Planar Laser-Induced Fluorescence of formaldehyde …

Experimental study of the effect of turbulence on the structure and dynamics of a bluff-body stabilized lean premixed flame

BR Chowdhury, JA Wagner, BM Cetegen - Proceedings of the Combustion …, 2017 - Elsevier
The structure of an unconfined, lean propane–air flame stabilized on an axisymmetric bluff
body is studied for different levels of turbulence intensity ranging from 4 to 30% in the …

Quantification of combustion regime transitions in premixed turbulent DME flames

F Hampp, RP Lindstedt - Combustion and Flame, 2017 - Elsevier
The current study quantifies the probability of encountering up to five fluid states (reactants,
combustion products, mixing fluid, fluids with low and high reactivity) in premixed turbulent …

Numerical studies of the pilot flame effect on a piloted jet flame

S Yu, XS Bai, B Zhou, Z Wang, ZS Li… - … Science and Technology, 2022 - Taylor & Francis
In a piloted jet flame, the pilot flame has an effect of stabilizing the main flame. Detailed
mechanisms of pilot flame/main flame interaction are however not well studied. It is expected …

A universally applicable 0D combustion model with a novel analysis of the critical factors affecting combustion in spark-ignition engines

M Kim, HH Song - International Journal of Engine Research, 2023 - journals.sagepub.com
Notwithstanding the continuous technological development of spark-ignition engines, the
physics of in-cylinder phenomena has not been explicitly clarified to date. Furthermore, the …