Prediction and control of combustion instabilities in real engines
T Poinsot - Proceedings of the Combustion Institute, 2017 - Elsevier
This paper presents recent progress in the field of thermoacoustic combustion instabilities in
propulsion engines such as rockets or gas turbines. Combustion instabilities have been …
propulsion engines such as rockets or gas turbines. Combustion instabilities have been …
Autoignition flame dynamics in sequential combustors
This numerical study investigates the linear and non-linear flame dynamics in the second
stage of a sequential combustor, with methane fuel injection into vitiated hot gas. It focuses …
stage of a sequential combustor, with methane fuel injection into vitiated hot gas. It focuses …
Contributions of hydrodynamic features of a swirling flow to thermoacoustic instabilities in a lean premixed swirl stabilized combustor
B Zhang, M Shahsavari, Z Rao, S Yang, B Wang - Physics of Fluids, 2019 - pubs.aip.org
A comprehensive study on influences of hydrodynamic features of a swirling flow on
thermoacoustic instabilities in a swirl stabilized combustor is performed by using large eddy …
thermoacoustic instabilities in a swirl stabilized combustor is performed by using large eddy …
Incompressible versus compressible large eddy simulation for the identification of premixed flame dynamics
The present work compares the respective advantages and disadvantages of compressible
and incompressible computational fluid dynamics (CFD) formulations when used for the …
and incompressible computational fluid dynamics (CFD) formulations when used for the …
Thermo-acoustic Instabilities in the PRECCINSTA Combustor Investigated Using a Compressible LES-pdf Approach
D Fredrich, WP Jones, AJ Marquis - Flow, Turbulence and Combustion, 2021 - Springer
This work predicts the evolution of self-excited thermo-acoustic instabilities in a gas turbine
model combustor using large eddy simulation. The applied flow solver is fully compressible …
model combustor using large eddy simulation. The applied flow solver is fully compressible …
Influence of a central jet on isothermal and reacting swirling flow in a model combustion chamber
EV Palkin, MY Hrebtov, DA Slastnaya… - Energies, 2022 - mdpi.com
We studied flow dynamics in a model combustion chamber using Large-eddy simulations
(LES) and Particle image velocimetry (PIV) at the Reynolds number R e of 15,000. The swirl …
(LES) and Particle image velocimetry (PIV) at the Reynolds number R e of 15,000. The swirl …
Linearized Euler equations for the prediction of linear high-frequency stability in gas turbine combustors
M Schulze, T Hummel… - … for Gas Turbines …, 2017 - asmedigitalcollection.asme.org
A novel methodology for linear stability analysis of high-frequency thermoacoustic
oscillations in gas turbine combustors is presented. The methodology is based on the …
oscillations in gas turbine combustors is presented. The methodology is based on the …
Coupled interactions of a helical precessing vortex core and the central recirculation bubble in a swirl flame at elevated power density
The PRECCINSTA GTMC was studied at elevated pressure and power density with 6 kHz
stereoscopic particle image velocimetry (SPIV), OH* chemiluminescence (CL), and 100 kHz …
stereoscopic particle image velocimetry (SPIV), OH* chemiluminescence (CL), and 100 kHz …
Intrinsic thermoacoustic feedback loop in turbulent spray flames
This paper investigates low-frequency thermoacoustic instabilities of a turbulent spray flame,
a phenomenon known as 'rumble'. Based on experimental data, a network model analysis is …
a phenomenon known as 'rumble'. Based on experimental data, a network model analysis is …
Effects of the fresh mixture temperature on thermoacoustic instabilities in a lean premixed swirl-stabilized combustor
B Zhang, M Shahsavari, Z Rao, R Li, S Yang… - Physics of …, 2020 - pubs.aip.org
This numerical study investigated the effects of the fresh mixture temperature on
thermoacoustic instabilities in a lean premixed swirl-stabilized combustion chamber by …
thermoacoustic instabilities in a lean premixed swirl-stabilized combustion chamber by …