In this study, we theoretically investigate the impact of outlet boundary conditions and mean
temperature gradients on the maximum transient growth rate of acoustical energy and the …

This study aims to investigate the impact of Nanosecond Repetitively Pulsed Discharges
(NRPDs) on the acoustic scattering properties of the second stage of a Constant Pressure …

Entropy waves are generated in many technically relevant flow processes such as
combustion, mixing, or convective heat transfer. When accelerated, entropy waves generate …

The combustion characteristics of ammonia-methane composite fuel in a premixed swirl-
stabilized combustor are experimentally investigated in the study. The combustion instability …

The orthogonally oriented injector configuration typically used in axial fuel staging-capable
gas turbine combustors is known to produce complicated thermoacoustic interactions …

This study experimentally investigates the dynamic behavior of hydrogen-natural gas reheat
flames, which are stabilized by both flame propagation and autoignition. Measurements are …

Direct numerical simulations (DNS) with detailed chemical kinetics and chemical explosive
mode analysis (CEMA) are performed to investigate the effect of operating pressure and …

The flame transfer function (FTF) relates acoustic perturbations and the coherent heat
release rate response. This frequency-dependent function governs the thermoacoustic …

This paper presents an experimental and numerical study of aeroacoustic instabilities at the
interface between neighbouring combustion chambers in modern heavy-duty gas turbines …

The self-excited dynamics of a lean-premixed axially-staged combustor, with respect to the
characteristic acoustic frequency, were experimentally investigated by varying the hydrogen …