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 …
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 …
[HTML][HTML] Complex system approach to investigate and mitigate thermoacoustic instability in turbulent combustors
Thermoacoustic instability in turbulent combustors is a nonlinear phenomenon resulting
from the interaction between acoustics, hydrodynamics, and the unsteady flame. Over the …
from the interaction between acoustics, hydrodynamics, and the unsteady flame. Over the …
Understanding the role of flow dynamics in thermoacoustic combustion instability
J O'Connor - Proceedings of the Combustion Institute, 2023 - Elsevier
Thermoacoustic combustion instability is one of the most challenging operational issues in
several high-performance, low-emissions combustion technologies, including gas turbines …
several high-performance, low-emissions combustion technologies, including gas turbines …
[HTML][HTML] Time domain simulations of nonlinear thermoacoustic behaviour in a simple combustor using a wave-based approach
J Li, AS Morgans - Journal of Sound and Vibration, 2015 - Elsevier
Lean premixed combustion chambers are susceptible to combustion instabilities arising
from the coupling between the heat release rate perturbations and the acoustic …
from the coupling between the heat release rate perturbations and the acoustic …
LES of longitudinal and transverse self-excited combustion instabilities in a bluff-body stabilized turbulent premixed flame
Combustion dynamics of a V-flame in an afterburner-type configuration are investigated
using high-order compressible large eddy simulations (LES) and compared to experimental …
using high-order compressible large eddy simulations (LES) and compared to experimental …
Onset of thermoacoustic instability in turbulent combustors: an emergence of synchronized periodicity through formation of chimera-like states
Thermoacoustic systems with a turbulent reactive flow, prevalent in the fields of power and
propulsion, are highly susceptible to oscillatory instabilities. Recent studies showed that …
propulsion, are highly susceptible to oscillatory instabilities. Recent studies showed that …
Effects of free stream flow turbulence on blowoff characteristics of bluff-body stabilized premixed flames
BR Chowdhury, BM Cetegen - Combustion and Flame, 2018 - Elsevier
In this article we report on an experimental investigation of a bluff-body stabilized lean
premixed flame subjected to different levels of free stream turbulence intensities (4, 14, 24 …
premixed flame subjected to different levels of free stream turbulence intensities (4, 14, 24 …
Shear flow instabilities in swirl-stabilized combustors and their impact on the amplitude dependent flame response: A linear stability analysis
K Oberleithner, S Schimek, CO Paschereit - Combustion and Flame, 2015 - Elsevier
The hydrodynamic instabilities in the flow field of a swirl-stabilized combustor are
investigated theoretically. These instabilities give rise to large-scale flow structures that …
investigated theoretically. These instabilities give rise to large-scale flow structures that …
Experimental study of the effects of free stream turbulence on characteristics and flame structure of bluff-body stabilized conical lean premixed flames
BR Chowdhury, BM Cetegen - Combustion and Flame, 2017 - Elsevier
This article describes an experimental investigation of the effect of different levels of free
stream turbulence intensity on the structure of an unconfined, lean propane–air flame …
stream turbulence intensity on the structure of an unconfined, lean propane–air flame …