[HTML][HTML] Tailoring the gain and phase of the flame transfer function through targeted convective-acoustic interference

E Æsøy, HT Nygård, NA Worth, JR Dawson - Combustion and Flame, 2022 - Elsevier
This paper investigates how targeted interference between two well characterized sources
of hydrodynamic disturbances can modify the response of premixed bluff body stabilised H …

[HTML][HTML] Measuring acoustic transfer matrices of high-pressure hydrogen/air flames for aircraft propulsion

A Faure-Beaulieu, B Dharmaputra, B Schuermans… - Combustion and …, 2024 - Elsevier
Destructive thermoacoustic instabilities may potentially slow down significantly the ongoing
development of hydrogen combustors for decarbonizing aviation. Their early prediction …

On the flame transfer function models for laminar premixed conical and V-flames considering the stretch effect

Y Tian, L Yang, AS Morgans, J Li - Combustion and Flame, 2023 - Elsevier
This paper investigates a predictive model that considers the impact of stretch on the
dynamic response of laminar premixed conical and V-flames; the flame stretch consists of …

[HTML][HTML] The flame macrostructure and thermoacoustic instability in a centrally staged burner operating in different pilot stage equivalence ratios

J Xiang, J Li, W Mo, B Wang, D Yang, X Gan - Physics of Fluids, 2024 - pubs.aip.org
The main focus of this paper is to discover the link between flame macrostructure and
thermoacoustic instability in a centrally staged swirl burner. In practical combustors, the flow …

Do flame describing functions suitably represent combustion dynamics under self-sustained oscillations?

PR Soundararajan, G Vignat, D Durox… - Journal of Sound and …, 2022 - Elsevier
Transfer function concepts that appear in many areas and most notably in control systems
have been extensively used to represent the flame response in low-order models of …

[HTML][HTML] Effects of swirler position on flame response and combustion instabilities

XU Liangliang, J Zheng, W Guoqing, LI Lei… - Chinese Journal of …, 2022 - Elsevier
This study is concerned with the experimental and theoretical investigation of the
combustion instabilities in a premixed swirl combustor. It is focused on the effects of the swirl …

The effects of injector size on the dynamics and instabilities of lean premixed swirling flame

G Wang, L Xu, L Li, X Liu, F Qi, TF Guiberti… - Aerospace Science and …, 2022 - Elsevier
The external-and self-excited premixed swirling flames are experimentally studied to
understand the thermoacoustic instabilities under different injector sizes. We use high-speed …

Tangential Mode Combustion Oscillation of a Bluff-Body-Stabilized Diffusion Flame: Experiments

Y Liu, L Xu, R Cheng, P Guo, Y Yan - AIAA Journal, 2024 - arc.aiaa.org
Addressing the issue of tangential mode combustion oscillation prevalent in aviation engine
afterburners, this study targets bluff body diffusion flames. Innovatively, acoustic cavities …

Experimental study on conical flame transfer functions considering velocity profiles

Y Tian, X Liang, S Zhang, Y Zhang, L Yang, J Li - Fuel, 2024 - Elsevier
This paper investigates the linear thermoacoustic dynamic response of laminar premixed
stoichiometric propane/air flames under different oncoming flow velocity profiles …

Investigation of Flame Response in a Swirling Micromix Hydrogen–Methane Combustor

D Liu, Z Feng, X Tian, L Xu… - … of Engineering for …, 2024 - asmedigitalcollection.asme.org
Hydrogen-enriched natural gas combustion is a hot topic in industrial and academic
communities due to the need for carbon emission reduction. However, thermoacoustic …