Thermoacoustic instability in turbulent combustors is a nonlinear phenomenon resulting
from the interaction between acoustics, hydrodynamics, and the unsteady flame. Over the …

Dynamical systems theory has emerged as an interdisciplinary area of research to
characterize the complex dynamical transitions in real-world systems. Various nonlinear …

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 …

In nonlinear dynamics, there are three classic routes to chaos, namely the period-doubling
route, the Ruelle–Takens–Newhouse route and the intermittency route. The first two routes …

Rocket engine combustors are prone to transverse instabilities that are characterized by
large amplitude high frequency oscillations in the acoustic pressure and the heat release …

We take a complex systems approach to investigating experimentally the collective
dynamics of a network of four self-excited thermoacoustic oscillators coupled in a ring. Using …

We study the formation mechanism of high-frequency combustion oscillations in a model
rocket combustor from the viewpoints of symbolic dynamics and complex networks. The flow …

We experimentally investigate the forced synchronization of a self-excited chaotic
thermoacoustic oscillator with two natural frequencies, plane. This study extends the …

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 …

We use a low-order oscillator model to investigate the mutual synchronization of a
thermoacoustic system consisting of two turbulent lean-premixed combustors coupled via a …