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 …

This paper reviews the occurrence of the precessing vortex core (PVC) and other
instabilities, which occur in, swirl combustion systems whilst identifying mechanisms, which …

An experimental study of unsteady reacting flow in a lean premixed swirl-stabilized
combustor has been performed using a high speed camera, LDV, chemiluminescence and …

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 …

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 …

The flow patterns produced in and past the exhaust of a 100-KW swirl burner have been
investigated experimentally under piloted premixed combustion conditions. The well-known …

Combustion instability is one significant issue in the development of aero-engines and gas
turbines. In practical combustors, the exit boundary of the combustion chamber is complex …

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 …

Large scale coherent structures play an important role in the behavior of the combustion
regime inside any type of combustor stabilized by swirl, with special impact on factors such …

Combustion instability is a serious problem limiting the operating envelope of present day
gas turbine systems using a lean premixed combustion strategy. Gas turbine combustors …