[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 …
Dynamical systems and complex systems theory to study unsteady combustion
Reacting flow fields are often subject to unsteadiness due to flow, reaction, diffusion, and
acoustics. Further, flames can also exhibit inherent unsteadiness caused by various intrinsic …
acoustics. Further, flames can also exhibit inherent unsteadiness caused by various intrinsic …
Thermoacoustic instability as mutual synchronization between the acoustic field of the confinement and turbulent reactive flow
Thermoacoustic instability is the result of a positive coupling between the acoustic field in
the duct and the heat release rate fluctuations from the flame. Recently, in several turbulent …
the duct and the heat release rate fluctuations from the flame. Recently, in several turbulent …
Flame interactions in a stratified swirl burner: Flame stabilization, combustion instabilities and beating oscillations
The present article investigates the interactions between the pilot and main flames in a novel
stratified swirl burner using both experimental and numerical methods. Experiments are …
stratified swirl burner using both experimental and numerical methods. Experiments are …
Dynamics and mechanisms of pressure, heat release rate, and fuel spray coupling during intermittent thermoacoustic oscillations in a model aeronautical combustor at …
S Kheirkhah, JDM Cirtwill, P Saini, K Venkatesan… - Combustion and …, 2017 - Elsevier
Dynamics of thermoacoustics oscillations occurring in a liquid fueled aeronautical gas
turbine model combustor burning Jet A fuel were investigated experimentally at a pressure …
turbine model combustor burning Jet A fuel were investigated experimentally at a pressure …
Open-loop control of periodic thermoacoustic oscillations: experiments and low-order modelling in a synchronization framework
Open-loop forcing is known to be an effective strategy for controlling self-excited
thermoacoustic oscillations, but the details of this synchronization process have yet to be …
thermoacoustic oscillations, but the details of this synchronization process have yet to be …
Control of self-excited thermoacoustic oscillations using transient forcing, hysteresis and mode switching
In many combustion devices, strong self-excited flow oscillations can arise from feedback
between unsteady heat release and acoustics, resulting in increased vibration and pollutant …
between unsteady heat release and acoustics, resulting in increased vibration and pollutant …
Strange nonchaotic and chaotic attractors in a self-excited thermoacoustic oscillator subjected to external periodic forcing
We experimentally investigate the synchronization dynamics of a self-excited
thermoacoustic system forced beyond its phase-locked state. The system consists of a …
thermoacoustic system forced beyond its phase-locked state. The system consists of a …
Forced synchronization of periodic and aperiodic thermoacoustic oscillations: lock-in, bifurcations and open-loop control
Synchronization is a universal concept in nonlinear science but has received little attention
in thermoacoustics. In this numerical study, we take a dynamical systems approach to …
in thermoacoustics. In this numerical study, we take a dynamical systems approach to …
Forced synchronization of quasiperiodic oscillations in a thermoacoustic system
In self-excited combustion systems, the application of open-loop forcing is known to be an
effective strategy for controlling periodic thermoacoustic oscillations, but it is not known …
effective strategy for controlling periodic thermoacoustic oscillations, but it is not known …