Combustion dynamics of multi-element lean-premixed hydrogen-air flame ensemble

H Kang, KT Kim - Combustion and Flame, 2021 - Elsevier
The crux of the technical issues facing the development of hydrogen gas turbine engines is
the problem of how to enable low NOx, low dynamics combustor operations without …

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 …

The effect of hydrogen addition on methane-air flame in a stratified swirl burner

S Rahimi, K Mazaheri, A Alipoor, A Mohammadpour - Energy, 2023 - Elsevier
This numerical study has focused on assessing the influence of adding 20% and 40%
hydrogen (on the volume of fuel basis) in different slots of a turbulent methane-air flame. The …

Relations between the number of spray droplets and chemiluminescence for Jet A-1 flames stabilized in a gas turbine model combustor

L Krebbers, S Mohammadnejad, A Rostami… - Combustion and …, 2023 - Elsevier
The spatial and temporal relations between the flame chemiluminescence and the number
of droplets for spray flames stabilized in a gas turbine model combustor are investigated …

Experimental investigation of combustion instability in a centrally staged combustor under self-excited oscillation conditions

J Ma, M Han, X Han, X Hui, X Xue - Physics of Fluids, 2023 - pubs.aip.org
This paper presents an experimental investigation of combustion instability and flame
dynamics in a laboratory-scale lean premixed prevaporized centrally staged combustor …

Numerical study of experimental feasible heat release rate markers for NH3–H2-air premixed flames

H Zhang, X Han, J Jiang, X Li, X Gan, B Zhou - International Journal of …, 2022 - Elsevier
Abstract Ammonia (NH 3) and hydrogen (H 2) as carbon-free fuels have attracted much
attention for combustion applications in recent years. Co-firing ammonia with hydrogen …

Hybrid algorithm for the detection of turbulent flame fronts

O Chaib, Y Zheng, S Hochgreb, I Boxx - Experiments in Fluids, 2023 - Springer
This paper presents a hybrid and unsupervised approach to flame front detection for low
signal-to-noise planar laser-induced fluorescence (PLIF) images. The algorithm combines …

Experimental study on the structure and propagation of the stretched hydrogen-rich turbulent premixed flames in the thin-reaction-zone regime

J Zou, C Liu, F Liu, Y Zhang, H Zhang, J Lyu - Fuel, 2024 - Elsevier
An experimental study on the structure and propagation of the stretched hydrogen-rich
premixed turbulent flames in the thin-reaction-zone regime was conducted. A set of optical …

Rotational symmetry-driven modal dynamics of high-frequency transverse instabilities in a lean-premixed multislit hydrogen combustor

D Park, T Lee, KT Kim - Combustion and Flame, 2022 - Elsevier
A cluster of small-scale multislit injectors, with aperture dimension of the same order of
magnitude as the characteristic thickness of hydrogen flames, effectively mitigates flashback …

Machine learning based heat release rate indicator of premixed methane/air flame under wide range of equivalence ratio

T Zhou, P Tang, T Ye - Energy, 2023 - Elsevier
Heat release rate (HRR) is an essential parameter of describing and monitoring combustion
phenomenon, which has intricate spatial and temporal distributions. Proper evaluation of the …