Reducing the footprint of greenhouse gases and nitrogen oxides (NOx) emissions from
combustion systems means that they have been operating under lean or ultra-lean fuel–air …

Self-excited thermoacoustic instabilities as frequently observed in rocket motors, gas
turbines, ramjets, and aeroengine afterburners are highly detrimental and undesirable for …

Combustion instability frequently occurs in propulsion and power generation systems. It is
characterized by large-amplitude acoustic oscillations leading to undesirable …

Effects of swirl divergence cup and the central bluff body on premixed flame response with
external excitation are experimentally investigated. Flame transfer functions (FTFs) …

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 …

Combustion instabilities have been a plaguing challenge in lean-conditioned propulsion
systems. An open-loop control system was developed using machine learning to suppress …

To investigate the effects of inlet temperature on the combustion instability in a partially
premixed coaxial staged model combustor, the Wall-Modeled Large Eddy Simulations and …

A methane/oxygen mixture is considered to be an appropriate propellant for many future
rocket engines due to its practicality and low cost. To better understand the combustion …

Effects of secondary gas injection on flame shape and combustion stability of a premixed
swirl methane/air flame were investigated experimentally. Without secondary gas injection …

In this study, we theoretically investigate the impact of outlet boundary conditions and mean
temperature gradients on the maximum transient growth rate of acoustical energy and the …