The dynamics of hydrogen-enriched partially premixed methane–air flames are investigated,
focusing on the frequency response to velocity and equivalence ratio fluctuations. Large …

Destructive thermoacoustic instabilities may potentially slow down significantly the ongoing
development of hydrogen combustors for decarbonizing aviation. Their early prediction …

Understanding the response of multi-jet turbulent hydrogen-air flames to acoustic forcing is
key for the development of future carbon-neutral gas turbine combustors. In this paper, we …

This paper presents a tunable combustor outlet geometry, which enables control of
thermoacoustic instabilities. It is based on a water-cooled conical piston inserted in the outlet …

The flame dynamics of a kerosene spray flame is investigated under realistic operating
conditions (Tinlet≈ 850 K, pinlet≈ 30 bar). The present work evaluates the flame transfer …

Flame dynamics, represented as a flame transfer matrix (FTM), is not directly measurable in
test rigs and must be deduced from transfer matrix measurements of the combustion system …

In this study, the flame dynamics of lean premixed hydrogen jet flames are experimentally
investigated. Acoustic and optical measurement devices are used to capture the response of …

It is widely acknowledged worldwide that the increase in Earth's surface temperature has to
be contained in order to limit the effect of climate changes. This is particularly vital due to …

This paper investigates the first Flame Transfer Functions (FTFs) of hydrogen diffusion swirl
flames, which are crucial for predicting and mitigating thermoacoustic instabilities. Given the …

Unsteady combustion generates not only acoustic waves, but also fluctuations of the burnt
gas temperature—referred to as entropy waves. These waves are convected by the mean …