The transient dynamics of the precessing vortex core (PVC), a globally unstable mode, in an
intermittently shape-transitioning swirl flame is investigated by means of simultaneous OH …

The precessing vortex core (PVC) is a coherent flow structure that is often encountered in
swirling flows in gas turbine (GT) combustors. In some swirl combustors, it has been …

The lift-off mechanism of swirl stabilized premixed flames was investigated using high
repetition rate OH planar laser induced fluorescence (PLIF), particle image velocimetry …

Large eddy simulations of turbulent swirl-stabilised flames gradually approaching blow-off
conditions in a gas turbine model combustor are undertaken. The global equivalence ratio of …

The coupling between fluid strain rate, local flame extinction, hydrodynamic instability, and
flame lift-off was studied in premixed swirl flames using multi-kHz repetition-rate OH …

This report deals with an experimental and analytical study of the occurrence of self-excited
hydrodynamic instabilities in swirling combustor flows. Different flow field types are …

The dynamics of a bi-stable swirl flame in a gas turbine model combustor is studied using
simultaneous PIV and OH-PLIF at 10 kHz. For most operating conditions, the flames in the …

Linear stability analysis is applied to a swirl-stabilized combustor flow with the aim to
understand how the flame shape and associated density field affects the manifestation of …

In this study, we apply periodic flow excitation of the PVC at the centerbody of a generic swirl-
stabilized combustor to investigate the impact of the precessing vortex core (PVC) on flame …

In this study, a combined experimental and Large Eddy Simulation (LES) investigation is
performed to identify the vortical structures, their dynamics, and interaction with a turbulent …