Thermoacoustic instability is a flow instability that arises due to a two-way coupling between
acoustic waves and unsteady heat release rate. It can cause damaging, large-amplitude …

This paper presents an experimental investigation of combustion instability and flame
dynamics in a laboratory-scale lean premixed prevaporized centrally staged combustor …

The large-scale direct utilization of two carbon-free fuels, ammonia and hydrogen, is
currently attracting significant interest in the context of the development of new gas turbine …

We experimentally study the acoustic coupling direction between two stages and the flame-
acoustic interaction within and across stages in an axially fuel-staged lean-premixed …

The orthogonally oriented injector configuration typically used in axial fuel staging-capable
gas turbine combustors is known to produce complicated thermoacoustic interactions …

In this paper we demonstrate how axial staging can be utilised to mitigate thermoacoustic
instabilities in a combustion system by flame redistribution. This is achieved by moving flow …

The self-excited dynamics of a lean-premixed axially-staged combustor, with respect to the
characteristic acoustic frequency, were experimentally investigated by varying the hydrogen …

Axial fuel staging (AFS) nozzle variants for applying to heavy duty gas turbine combustors
were designed and experimentally investigated in this study. Four AFS nozzle variants …

The purpose of this study was to evaluate the combustion instability characteristics of target
aircraft combustors under development using network thermoacoustic (TA) models. The …

The self-excited dynamics of a lean-premixed axially-staged combustor, with respect to the
characteristic acoustic frequency, were experimentally investigated by varying the hydrogen …