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 …

Destructive thermoacoustic instabilities may potentially slow down significantly the ongoing
development of hydrogen combustors for decarbonizing aviation. Their early prediction …

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

Depending on the reflectional and rotational symmetries of annular combustors for
aeroengines and gas turbines, self-sustained azimuthal thermoacoustic eigenmodes can be …

This work introduces a novel method to represent the topological complexity of liners and
boundaries in Low Order Models for thermoacoustic instabilities, under the assumption of …

We consider the acoustic flow field of rotationally symmetric systems, like an annular
combustor and the flow in a round duct, in absence of a mean azimuthal flow field. We focus …

Hazardous azimuthal thermoacoustic modes often occur in lean-premixed annular
combustors. One practical control method is the application of perforated liners with bias …

The Galerkin modal expansion is a well-known method used to develop reduced order
models for thermoacoustics. A known issue is the appearance of Gibbs-type oscillations on …

Closed combustion devices like gas turbines and rockets are prone to thermoacoustic
instabilities. Design engineers in the industry need tools to accurately identify and remove …

Thermoacoustic systems are often modeled with a hybrid approach that combines separate
models for acoustic propagation and flame dynamics. Model Order Reduction (MOR) may …