[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 …

Investigation of flame structure and precessing vortex core instability of a gas turbine model combustor with different swirler configurations

A Mardani, B Asadi, AA Beige - Physics of Fluids, 2022 - pubs.aip.org
Numerical simulation of a dual-swirl gas turbine model combustor is performed under cold
and reacting flow conditions using a three-dimensional unsteady Reynolds-averaged Navier …

An investigation on flame structure and NOx formation in a gas turbine model combustor using large eddy simulation

AA Beige, A Mardani - Physics of Fluids, 2023 - pubs.aip.org
In this work, large eddy simulations (LES) of a Gas Turbine Model Combustor (GTMC) are
done using a five-step global mechanism that includes separate thermal and non-thermal …

[HTML][HTML] Application of a two-progress variable model for carbon monoxide emissions from turbulent premixed and partially premixed enclosed flames

JC Massey, Y Tanaka, N Swaminathan - Combustion and Flame, 2023 - Elsevier
A large eddy simulation study is undertaken with the objective of improving carbon
monoxide (CO) estimations compared to measurements of enclosed turbulent flames in …

Large-eddy simulation and challenges for projection-based reduced-order modeling of a gas turbine model combustor

N Arnold-Medabalimi, C Huang… - … Journal of Spray and …, 2022 - journals.sagepub.com
Computationally efficient modeling of gas turbine combustion is challenging due to the
chaotic multi-scale physics and the complex non-linear interactions between acoustic …

Period-2 thermoacoustics in a swirl-stabilised partially premixed flame computed using large eddy simulation

AD Kumar, JC Massey, M Stöhr, W Meier… - Flow, Turbulence and …, 2023 - Springer
A partially premixed swirl-stabilised flame under thermoacoustically unstable conditions is
studied using large eddy simulation with an unstrained flamelet model for the filtered …

Experimental characterization of self-excited combustion pulsation in a thermoacoustic combustor

F Li, L Xu, L Yang, Z Cao - Fuel, 2023 - Elsevier
Combustion in a pulse combustor was commonly regarded as a quasi-regular pulsation
process, or even a sinusoidal pulsation. However, how to precisely describe the pulsation …

Combustion instability of ethanol and n-heptane fuels under different combustor geometries

Z Liu, D Wei, M Ji, H Fang, H Zhou - Journal of the Energy Institute, 2022 - Elsevier
Combustion instability has become one of the most significant challenges faced in designing
modern industrial gas turbines and aero-engines. In this study, the influence of combustor …

Experimental study on combustion and thermoacoustic instability characteristics of ethanol/methane Co-firing flames

H Fang, D Wei, H Zhou - Journal of the Energy Institute, 2024 - Elsevier
This paper investigates the combustion and thermoacoustic instability characteristics of
ethanol/methane co-firing flames. Methane was introduced into the combustion chamber in …

Experimental and numerical analysis of effect of fuel line length on combustion instability for H2/CH4 gas turbine combustor

S Joo, S Kwak, Y Yoon, S Hong, D Kim - International Journal of Hydrogen …, 2021 - Elsevier
This study primarily aims to investigate the effects of fuel line length on the combustion
instability characteristics of a partially premixed system. The key characteristics of …