Forced response of laminar non-premixed jet flames
N Magina, V Acharya, T Lieuwen - Progress in Energy and Combustion …, 2019 - Elsevier
This paper reviews current understanding of the manner in which non-premixed jet flames
respond to flow disturbances, and compares these characteristics to premixed flames …
respond to flow disturbances, and compares these characteristics to premixed flames …
Learning thermoacoustic interactions in combustors using a physics-informed neural network
Many gas turbine and rocket engines exhibit unwanted combustion instability at the
experimental testing phase. Instability leads to large amplitude pressure oscillations and …
experimental testing phase. Instability leads to large amplitude pressure oscillations and …
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 …
[HTML][HTML] Nonlinear dynamics of a self-excited thermoacoustic system subjected to acoustic forcing
We experimentally study the nonlinear dynamics of a self-excited thermoacoustic system
subjected to acoustic forcing. Our aim is to relate these dynamics to the behavior of universal …
subjected to acoustic forcing. Our aim is to relate these dynamics to the behavior of universal …
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 …
Detection and prevention of blowout in a lean premixed gas-turbine model combustor using the concept of dynamical system theory
S Domen, H Gotoda, T Kuriyama, Y Okuno… - Proceedings of the …, 2015 - Elsevier
We propose a novel online method of detecting lean blowout (LBO) in a laboratory-scale
premixed-type gas-turbine model combustor from the viewpoint of dynamical system theory …
premixed-type gas-turbine model combustor from the viewpoint of dynamical system theory …
Input-output system identification of a thermoacoustic oscillator near a Hopf bifurcation using only fixed-point data
We present a framework for performing input-output system identification near a Hopf
bifurcation using data from only the fixed-point branch, prior to the Hopf point itself. The …
bifurcation using data from only the fixed-point branch, prior to the Hopf point itself. The …