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

In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple
with acoustic pressure oscillations. If the heat release is sufficiently in phase with 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 …

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

This article deals with the symmetry breaking of azimuthal thermoacoustic modes in annular
combustors. Using a nominally symmetric annular combustor, we present experimental …

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 …

The present article investigates the application of deep learning methods to monitor
combustion instabilities based on time-averaged flame images. Experiments on BASIS …

Tipping is a phenomenon in multistable systems where small changes in inputs cause huge
changes in outputs. When the parameter varies within a certain time scale, the rate will affect …

Thermoacoustic instabilities under lean operation in gas turbine burners hinder the
development of lean premixed combustion mode of operation, thus limiting the potential to …

This numerical study investigates the linear and non-linear flame dynamics in the second
stage of a sequential combustor, with methane fuel injection into vitiated hot gas. It focuses …