In order to reduce the dimensions of the combustor, swirl stabilized flames are used in heavy
duty gas turbines. In our recent investigation of the swirling flow at a single heavy duty gas …

In order to reduce the dimensions of the combustor, swirl stabilized flames are used in heavy
duty gas turbines. In our recent investigation of the swirling flow at a single heavy duty gas …

The swirling flow in a model lean premixed combustor is studied for flow conditions
characterized by the presence of a breakdown zone and flow pulsations caused by …

The velocity field of a partially premixed, turbulent swirling flame in a gas turbine model
combustor has been measured using Particle Image Velocimetry (PIV). The flame, operated …

The goal of this study was to select and test some analysis tools to identify and characterize
precursors to the onset of thermo-acoustic pulsation in a gas turbine combustor. The target …

Three main types of combustion instabilities often found in combustors boilers and flames
are discussed. These instabilities are: Combustion chamber (ie fluid dynamic, acoustic and …

This paper first reviews recent ideas that explain why swirl has a strong stabilizing effect on
a flame. Then some measurements are discussed that were obtained using a complex gas …

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 …

Most gas turbine and other combustion systems use swirl as a method of flame stabilization.
Swirling flows can in themselves generate several different types of flow and flame …

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 …