Turbulent and vortical flows are ubiquitous and their characterization is crucial for the
understanding of several natural and industrial processes. Among different techniques to …

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

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 …

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 …

In the present study, we quantify the vorticity interactions in a bluff body stabilized turbulent
combustor during the transition from combustion noise to thermoacoustic instability via …

Multi-bifurcation behaviors of staged swirl flames fueled with methane at atmospheric
pressure are experimentally investigated by varying the global equivalence ratio (⁠ ϕ glo⁠) …

Many combustors are prone to Thermoacoustic Instabilities (TAI). Being able to avoid TAI is
mandatory to efficiently operate a system without sacrificing neither performance nor safety …

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 study the spatio-temporal dynamics of high-frequency combustion instability in a model
single-element rocket combustor using an acoustic energy flux-based spatial network. The …