Swirling flame dynamics is investigated using a radial swirler equipped with movable
blades. This device allows to continuously change the swirl number and to examine various …

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

In many continuous combustion processes the flame is stabilized by swirling the injected
flow. This is the case for example in aeroengine combustors or in gas turbines where …

In many continuous combustion processes, such as those found in aeroengines or gas
turbines, the flame is stabilized by a swirling flow formed by aerodynamic swirlers. The …

Combustion instabilities represent a long known problem in combustion technology. The
complex interactions between acoustics and turbulent swirling flames are not fully …

This paper deals with the response of swirling flames submitted to acoustic velocity
disturbances when the rotation of the flow is produced by an axial or a radial swirler. The …

Turbulent swirl flames are known to exhibit intermittent transitions between V-and M-shapes
at certain operating conditions. A diagnostic apparatus based on a commercial highspeed …

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 dynamics of major flow structures were studied in a gas turbine model combustor for
perfectly premixed swirl-stabilized flames under a variety of reacting and non-reacting …

Sudden changes of flame shape are an undesired, yet poorly understood feature of swirl
combustors used in gas turbines. The present work studies flame shape transition …