It is accepted that the thermoacoustic behavior of a given combustion system can be
analyzed by investigating how its natural acoustic modes are perturbed by the flame …

Heavy-duty land-based gas turbines are often designed with can-annular combustors, which
consist of a set of identical cans, acoustically connected on the upstream side via the …

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

In jet engines and gas turbines, the annular shape of the combustion chamber allows the
appearance of self-oscillating azimuthal thermoacoustic modes. We report experimental …

We experimentally investigate the forced synchronization of a self-excited chaotic
thermoacoustic oscillator with two natural frequencies, plane. This study extends the …

Thermoacoustic instabilities in can-annular combus-tors of stationary gas turbines lead to
unstable Bloch modes which appear as rotating acoustic pressure waves along the turbine …

A recent study (Yong, Silva, and Polifke, Combust. Flame 228 (2021)) proposed the use of
phasor diagrams to categorize marginally stable modes in an ideal resonator with a …

Thermoacoustic properties of can-annular combustors are commonly investigated by means
of single-can test-rigs. To obtain representative results, it is crucial to mimic can–can …

Thermoacoustic systems can exhibit self-excited instabilities of two nature, namely cavity
modes or intrinsic thermoacoustic (ITA) modes. In heavy-duty land-based gas turbines with …

Thermoacoustic instability in the combustion chamber of gas turbines, aero and rocket
engines has become a topic concern. In this paper, a new instability phenomenon in the …