Dynamics of swirling flames

S Candel, D Durox, T Schuller… - Annual review of …, 2014 - annualreviews.org
In many continuous combustion processes, such as those found in aeroengines or gas
turbines, the flame is stabilized by a swirling flow formed by aerodynamic swirlers. The …

Thermoacoustic instability considerations for high hydrogen combustion in lean premixed gas turbine combustors: a review

J Beita, M Talibi, S Sadasivuni, R Balachandran - Hydrogen, 2021 - mdpi.com
Hydrogen is receiving increasing attention as a versatile energy vector to help accelerate
the transition to a decarbonised energy future. Gas turbines will continue to play a critical …

A review of aircraft subsonic and supersonic combustors

GAQ Abdulrahman, NAA Qasem, B Imteyaz… - Aerospace Science and …, 2023 - Elsevier
Combustion is an essential process for generating propulsion for most existing aircraft. The
combustion processes, such as ignition, flame propagation, and flame stability, are …

On the impact of H2-enrichment on flame structure and combustion dynamics of a lean partially-premixed turbulent swirling flame

PW Agostinelli, D Laera, I Chterev, I Boxx… - Combustion and …, 2022 - Elsevier
Abstract Large Eddy Simulation (LES) with Conjugate Heat Transfer (CHT) is used to
analyze the impact of H 2-enrichment on the flame structure and combustion dynamics of a …

[HTML][HTML] The influence of hydrogen on the stability of a perfectly premixed combustor

JG Aguilar, E Æsøy, JR Dawson - Combustion and Flame, 2022 - Elsevier
In this paper we investigate the effects of increasing the amount of hydrogen in the fuel
mixture on the stability of a perfectly premixed combustor. Experiments are carried out on a …

Impact of heat loss and hydrogen enrichment on the shape of confined swirling flames

TF Guiberti, D Durox, P Scouflaire, T Schuller - Proceedings of the …, 2015 - Elsevier
Shape transitions of swirling flames are often observed in combustion chambers operated at
steady flow injection conditions. These transitions may alter pollutant emissions, heat fluxes …

Dual-fuel, dual-swirl burner for the mitigation of thermoacoustic instabilities in turbulent ammonia-hydrogen flames

A Katoch, TF Guiberti, DV de Campos… - Combustion and Flame, 2022 - Elsevier
In this paper, a novel dual-fuel, dual-swirl burner is presented and its potential to mitigate
thermoacoustic coupling for ammonia-hydrogen-air flames is explored. The key feature of …

Turbulent flame stabilization modes in premixed swirl combustion: Physical mechanism and Karlovitz number-based criterion

S Taamallah, SJ Shanbhogue, AF Ghoniem - Combustion and Flame, 2016 - Elsevier
Modern low-emission, lean premixed gas turbine combustion systems often rely on confined
swirling flows associated with sudden expansions to enhance flame anchoring. Through the …

Time-Resolved Particle Image Velocimetry of dynamic interactions between hydrogen-enriched methane/air premixed flames and toroidal vortex structures

V Di Sarli, A Di Benedetto, EJ Long… - international journal of …, 2012 - Elsevier
Time-Resolved Particle Image Velocimetry was used to study transient interactions between
hydrogen-enriched methane/air premixed flames and toroidal vortex structures. Lean and …

Interference mechanisms of acoustic/convective disturbances in a swirl-stabilized lean-premixed combustor

KT Kim, DA Santavicca - Combustion and Flame, 2013 - Elsevier
Interference mechanisms of acoustic/convective disturbances were experimentally
investigated in a swirl-stabilized lean-premixed gas turbine combustor operated with natural …