Experimental and numerical investigations of forced response of multi-element lean-premixed hydrogen flames

H Kang, C Yoon, KT Kim - Combustion and Flame, 2023 - Elsevier
Understanding the distinctive thermoacoustic properties of multi-element lean-premixed
hydrogen flames is crucial for the development of hydrogen-capable gas turbines. Extending …

[HTML][HTML] Impact of H2-enrichment on the response of a partially premixed CH4–air flame to velocity and equivalence ratio fluctuations

AM Garcia, S Le Bras, J Prager, I Boxx, W Polifke - Combustion and Flame, 2024 - Elsevier
The dynamics of hydrogen-enriched partially premixed methane–air flames are investigated,
focusing on the frequency response to velocity and equivalence ratio fluctuations. Large …

[HTML][HTML] Effect of H2 addition on the local extinction, flame structure, and flow field hydrodynamics in non-premixed bluff body stabilized flames

K Rajamanickam, F Lefebvre, C Gobin, G Godard… - Physics of …, 2023 - pubs.aip.org
We examined the effect of hydrogen (H2) enrichment on the primary fuel methane (CH4) in a
canonical non-premixed bluff-body stabilized burner operating under typical central jet …

[HTML][HTML] Transfer functions of lean fully-and technically-premixed jet-stabilized turbulent hydrogen flames

K Moon, R Martin, B Schuermans, N Noiray - Proceedings of the …, 2024 - Elsevier
Understanding the response of multi-jet turbulent hydrogen-air flames to acoustic forcing is
key for the development of future carbon-neutral gas turbine combustors. In this paper, we …

Effect of hydrogen enrichment on transfer matrices of fully and technically premixed swirled flames

A Blondé, B Schuermans… - … of Engineering for …, 2023 - asmedigitalcollection.asme.org
Abstract Knowledge of flame responses to acoustic perturbations is of utmost importance to
predict thermoacoustic instabilities in gas turbine combustors. However, measuring transfer …

[HTML][HTML] On the incorporation of conservation laws in machine learning tabulation of kinetics for reacting flow simulation

T Readshaw, WP Jones, S Rigopoulos - Physics of Fluids, 2023 - pubs.aip.org
Tabulation of chemical mechanisms with artificial neural networks (ANNs) offers significant
speed benefits when computing the real-time integration of reaction source terms in …

Application of an Improved Workflow for the Identification of Flame Dynamics to Swirl-Stabilized Wet Combustion

M Désor, M Haeringer… - … for Gas Turbines …, 2025 - asmedigitalcollection.asme.org
The estimation of flame transfer functions (FTF) from time series data generated by large
eddy simulation (LES) via system identification (SI) is an important element of …

Development and validation of models for turbulent reacting flows

M Klein, N Chakraborty, A Kempf, A Sadiki - Physics of Fluids, 2022 - pubs.aip.org
The transformation of the energy industry into a climate-neutral circular economy is the key
challenge for the 21st century. There is an undeniable need for renewable energy sources …

Modelling Turbulent Premixed CH4/H2/air Flames with Effects of Stretch, Heat Loss and Non-unity Lewis Number for Flame Stabilization and Dynamics

H Kutkan - 2023 - tesidottorato.depositolegale.it
This research study investigates the effects of hydrogen enrichment on bluff-body stabilized
turbulent premixed methane flames in the lean combustion regime. To this end, a premixed …

An efficient model for subgrid-scale velocity enrichment for large-eddy simulations of turbulent flows

M Hausmann, F Evrard, B Van Wachem - Physics of Fluids, 2022 - pubs.aip.org
In some applications of large-eddy simulation (LES), in addition to providing a closure model
for the subgrid-scale stress tensor, it is necessary to also provide means to approximate the …