The unsteady response of a flame to acoustic or flow perturbations plays a crucial role in
thermoacoustic combustion instability. The majority of studies on this subject presents and …

We propose a general classification of all the modes of a given thermoacoustic system into
two sets: one of acoustic origin and one of intrinsic thermoacoustic (ITA) origin. To do this …

Abstract Ammonia (NH 3) and hydrogen (H 2) as carbon-free fuels have attracted much
attention for combustion applications in recent years. Co-firing ammonia with hydrogen …

We perform a conceptual study about the linear stability of a hydrogen-enriched methane-air
premixed laminar flame inside a cylindrical duct with both ends open. The flame and …

While lean combustion in gas turbines is known to reduce NOx, it makes combustors more
prone to thermo-acoustic instabilities, which can lead to deterioration in engine …

A methodology is developed where the acoustic response of a swirl stabilized flame is
obtained from a reduced set of simulations. Building upon previous analytical flame transfer …

We construct a low-order thermoacoustic network model that contains the most influential
physical mechanisms of a thermoacoustic system. We apply it to a laboratory-scale …

The present article reports the investigation on the effect of inlet flow turbulence on flame–
vortex dynamics during the thermo-acoustically induced flame flashback in a premixed …

We propose an on-the-fly statistical learning method to take a qualitative reduced-order
model of the dynamics of a premixed flame and make it quantitatively accurate. This physics …

Direct numerical simulation (DNS) was used to characterize the kinematics of ensemble-
averaged flame position in harmonically oscillating turbulent premixed flames. The flames …