Many complex systems undergo critical transitions. A thermoacoustic system is one such
system which exhibits a catastrophic transition to a state of oscillatory instability known as …

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 …

Thermoacoustic instability, also known as combustion instability, continues to be a problem
in the development of modern gas turbine combustors and rocket engines. Such instability is …

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 …

Unexpected catastrophic transitions are often observed in complex systems. However, the
prediction of such transitions is difficult in practice. Here, we find a special kind of extreme …

We report the appearance of strange nonchaotic attractors in a discrete FitzHugh–Nagumo
neuron model with discontinuous resetting. The well-known strange nonchaotic attractors …

In this study, we systematically analyze the effects of hydrogen enrichment in the well-known
PRECCINSTA burner, a partially premixed swirl-stabilized methane/air combustor. Kee** …

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 …

In this experimental study on a methane-hydrogen fired laboratory-scale pressurized
annular combustor, various steady and transient operating conditions were explored. Under …