Latest developments in thermoacoustic devices have demonstrated comparable power
output and efficiency, but higher reliability and lower cost when compared to conventional …

Nine decades of rocket engine and gas turbine development have shown that
thermoacoustic oscillations are difficult to predict but can usually be eliminated with …

Self-excited thermoacoustic instabilities as frequently observed in rocket motors, gas
turbines, ramjets, and aeroengine afterburners are highly detrimental and undesirable for …

Self-sustained combustion instabilities are one of the most plaguing challenges and
problems in lean-conditioned propulsion and land-based engine systems, such as rocket …

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

The objective of this article is to review some developments in the use of adjoint equations in
hydrodynamic stability theory. Adjoint-based sensitivity analysis finds both analytical and …

This review discusses a recently developed optimization technique for analyzing the
nonlinear stability of a flow state. It is based on a nonlinear extension of nonmodal analysis …

Nonlinear self-excited thermoacoustic oscillations appear in systems involving confined
combustion in the form of coupled acoustic pressure oscillations and unsteady heat release …

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 …

Lean premixed combustion chambers are susceptible to combustion instabilities arising
from the coupling between the heat release rate perturbations and the acoustic …