Transverse combustion instabilities: Acoustic, fluid mechanic, and flame processes
Thermoacoustic oscillations associated with transverse acoustic modes are routinely
encountered in combustion chambers. While a large literature on this topic exists for rockets …
encountered in combustion chambers. While a large literature on this topic exists for rockets …
Linear flow analysis inspired by mathematical methods from quantum mechanics
Since its birth in the 1920s, quantum mechanics has motivated and advanced the analysis of
linear operators. In this effort, it significantly contributed to the development of sophisticated …
linear operators. In this effort, it significantly contributed to the development of sophisticated …
Thermoacoustic Instability in Combustors
AS Morgans, D Yang - Annual Review of Fluid Mechanics, 2024 - annualreviews.org
Thermoacoustic instability is a flow instability that arises due to a two-way coupling between
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …
Thermoacoustics of can-annular combustors
G Ghirardo, C Di Giovine… - … of Engineering for …, 2019 - asmedigitalcollection.asme.org
Can-annular combustors consist of a set of independent cans, connected on the upstream
side to the combustor plenum and on the downstream side to the turbine inlet, where a …
side to the combustor plenum and on the downstream side to the turbine inlet, where a …
Progress in analytical methods to predict and control azimuthal combustion instability modes in annular chambers
Progress in analytical methods to predict and control azimuthal combustion instability
modes in annular chambers | Physics of Fluids | AIP Publishing Skip to Main Content …
modes in annular chambers | Physics of Fluids | AIP Publishing Skip to Main Content …
The damping and locking of self-excited azimuthal modes by baffles installed in the plenum of an annular combustor
Y Fang, L Ji, J Li, C Ma, G Wang - Combustion and Flame, 2024 - Elsevier
Practical passive control solutions for azimuthal thermoacoustic instabilities in annular
combustors, which typically involve symmetry-breaking strategies, have garnered increasing …
combustors, which typically involve symmetry-breaking strategies, have garnered increasing …
Spontaneous and explicit symmetry breaking of thermoacoustic eigenmodes in imperfect annular geometries
T Indlekofer, A Faure-Beaulieu, JR Dawson… - Journal of Fluid …, 2022 - cambridge.org
This article deals with the symmetry breaking of azimuthal thermoacoustic modes in annular
combustors. Using a nominally symmetric annular combustor, we present experimental …
combustors. Using a nominally symmetric annular combustor, we present experimental …
Imperfect symmetry of real annular combustors: beating thermoacoustic modes and heteroclinic orbits
A Faure-Beaulieu, T Indlekofer, JR Dawson… - Journal of Fluid …, 2021 - cambridge.org
In jet engines and gas turbines, the annular shape of the combustion chamber allows the
appearance of self-oscillating azimuthal thermoacoustic modes. We report experimental …
appearance of self-oscillating azimuthal thermoacoustic modes. We report experimental …
A systematic study of nonlinear coupling of thermoacoustic modes in annular combustors
Thermoacoustic instabilities in annular gas turbine combustors often involve modes which
vary in both the longitudinal and circumferential directions. Recent experimental studies …
vary in both the longitudinal and circumferential directions. Recent experimental studies …
Weakly nonlinear analysis of thermoacoustic instabilities in annular combustors
Rotationally symmetric annular combustors are of practical importance because they
generically resemble combustion chambers in gas turbines, in which thermoacoustically …
generically resemble combustion chambers in gas turbines, in which thermoacoustically …