[HTML][HTML] Complex system approach to investigate and mitigate thermoacoustic instability in turbulent combustors

RI Sujith, VR Unni - Physics of Fluids, 2020 - pubs.aip.org
Thermoacoustic instability in turbulent combustors is a nonlinear phenomenon resulting
from the interaction between acoustics, hydrodynamics, and the unsteady flame. Over the …

Rijke tube: A nonlinear oscillator

K Manoj, SA Pawar, J Kurths, RI Sujith - Chaos: An Interdisciplinary …, 2022 - pubs.aip.org
Dynamical systems theory has emerged as an interdisciplinary area of research to
characterize the complex dynamical transitions in real-world systems. Various nonlinear …

Intermittent bursting in the fractional difference logistic map of matrices

D Petkevičiūtė-Gerlach, R Šmidtaitė… - International Journal of …, 2022 - World Scientific
Intermittent bursting in the fractional difference logistic map of matrices is studied in this
paper. Analytic relationships governing the dynamics of the fractional difference map of …

Compound bursting behaviors in a forced Mathieu-van der Pol-Duffing system

X Ma, D Xia, W Jiang, M Liu, Q Bi - Chaos, Solitons & Fractals, 2021 - Elsevier
The mechanism of compound bursting behaviors of a forced Mathieu-van der Pol-Duffing
system is explored. Four compound bursting types and one typical relaxation oscillation, ie …

Complex bursting dynamics of a Mathieu-van der Pol-Duffing energy harvester

X Ma, W Jiang, X Zhang, X Han, Q Bi - Physica Scripta, 2020 - iopscience.iop.org
The purpose of this paper aims to explore the mechanism of several different periodic
bursting patterns based on a Mathieu-van der Pol-Duffing energy harvester with parameter …

Bursting during intermittency route to thermoacoustic instability: Effects of slow–fast dynamics

S Tandon, SA Pawar, S Banerjee… - … Journal of Nonlinear …, 2020 - pubs.aip.org
Intermittency observed prior to thermoacoustic instability is characterized by the occurrence
of bursts of high-amplitude periodic oscillations (active state) amidst epochs of low …

Periodic bursting behaviors induced by pulse-shaped explosion or non-pulse-shaped explosion in a van der Pol-Mathieu oscillator with external excitation

X Ma, W Jiang, Y Yu - … in Nonlinear Science and Numerical Simulation, 2021 - Elsevier
In this paper, we present two bursting patterns induced by pulse-shaped explosion (PSE)
and two bursting patterns triggered by non-PSE based upon a van der Pol-Mathieu oscillator …

Flame dynamics during intermittency and secondary bifurcation to longitudinal thermoacoustic instability in a swirl-stabilized annular combustor

A Roy, S Singh, A Nair, S Chaudhuri… - Proceedings of the …, 2021 - Elsevier
In this experimental study on a laboratory-scale turbulent annular combustor with sixteen
swirl-stabilized burners, we study the flame-flame and flame-acoustic interactions during …

Effects of modulation phase on relaxation oscillations in the Duffing system

J Song, X Han - Chaos, Solitons & Fractals, 2024 - Elsevier
Amplitude modulation, a recently focused mode of modulation in fast–slow dynamics, plays
a crucial role in governing the behaviors of relaxation oscillations. This modulation mode …

Synchronization framework for modeling transition to thermoacoustic instability in laminar combustors

Y Weng, VR Unni, RI Sujith, A Saha - Nonlinear Dynamics, 2020 - Springer
We, herein, present a new model based on the framework of synchronization to describe a
thermoacoustic system and capture the multiple bifurcations that such a system undergoes …