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 thermoacoustic effect is a complicated occurrence that involves the mutual conversion
of sound and thermal energy. Thermoacoustic heat engines built on this effect have …

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

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 …

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

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

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

This investigation presents novel adaptive control algorithms specifically designed to
address and mitigate thermoacoustic instabilities. Gas turbines are limited in their …