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 …

Global instabilities in swirling flows can significantly alter the flame and flow dynamics of
swirl-stabilized flames, such as those in modern gas turbine engines. In this study, we …

The hydrodynamic instabilities in the flow field of a swirl-stabilized combustor are
investigated theoretically. These instabilities give rise to large-scale flow structures that …

Modern low-emission, lean premixed gas turbine combustion systems often rely on confined
swirling flows associated with sudden expansions to enhance flame anchoring. Through the …

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 …

A laboratory gas turbine model combustor with dual-swirler configuration is investigated
using Large Eddy Simulation (LES) with a flamelet subgrid combustion model. Two partially …

In this paper, we conduct an experimental investigation to study the link between the flame
macroscale structure—or flame brush spatial distribution—and thermo-acoustic instabilities …

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 …

The present investigation is an analysis of self-excited combustion instability in a swirl flame-
based combustor with transverse extensions. Transverse extensions create the possibility of …

We present an application of a newly introduced method to analyze the time-resolved
experimental data from the flow field of a swirl-stabilized combustor. This method is based …