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 …

In engine combustion systems such as rockets, aero-engines and gas turbines, pressure
fluctuations are always present, even during normal operation. One of design prerequisites …

Thermoacoustic instability is a flow instability that arises due to a two-way coupling between
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …

The stochastic nature of combustion instabilities in practical land-based gas turbines and
aeroengines combustors has seldom been investigated. It is shown here that a wealth of …

This study demonstrates the stabilization of a sequential combustor with Nanosecond
Repetitively Pulsed Discharges (NRPD). Sequential combustors offer advantages such as …

Practical passive control solutions for azimuthal thermoacoustic instabilities in annular
combustors, which typically involve symmetry-breaking strategies, have garnered increasing …

Modern gas turbine combustors operating in lean-premixed mode are prone to thermo-
acoustic instabilities. In annular combustion chambers, usually azimuthal acoustic modes …

Passive damping devices such as Helmholtz dampers are often employed in gas turbines to
mitigate thermoacoustic instabilities. The periodic ingestion of the combustion chamber hot …

This paper concerns the influence of the phase of the heat release response on
thermoacoustic systems. We focus on one pair of degenerate azimuthal acoustic modes …

This article reports experiments carried out in the laboratory scale annular combustor
MICCA-spray equipped with multiple swirling spray injectors. The experimental setup …