The present article investigates the application of deep learning methods to monitor
combustion instabilities based on time-averaged flame images. Experiments on BASIS …

The centrally staged combustor is an effective way to reduce pollutant emissions. However,
combustion instability is one of the prominent and unavoidable problems for lean premixed …

Highlights•The stratified flames are established at different swirl intensities, air split ratios
and stratification ratios.•Three parameter's separate and combined effects on flame structure …

Abstract Particle Image Velocimetry (PIV) measurements and Large Eddy Simulation (LES)
simulations are conducted for non-reacting and reacting flows to investigate the effects of …

Stratified swirling flames are typically formed in centrally-staged combustors of modern aero
engines. The pilot flame plays an indispensable role in stabilizing the stratified swirling …

In a centrally-staged combustor, the stratified swirling flame often manifests a helical mode,
which is characterized by the emergence of helical vortices, including the precessing vortex …

Highlights•Mechanisms of thermoacoustic oscillations in the dump confinement are
elucidated.•A passive control method is proposed by using the slope confinement.•This …

This study deals with the experimental characterization of the induced flow dynamics by a
disk-needle-type plasma actuator driven by a sinusoidal generator and located in a …

Fuel-feeding excitation (ff) is an important factor in lean combustors because it controls the
combustion process and maintains a stable mixing process. In this work, the structure of …

应用高速激光诊断系统, 对中心分层旋流火焰开展了流场与火焰结构的多参数同步测量,
研究了分层比对火焰动力学及瞬态流动结构的影响. 通过20 kHz 高频平面激光诱导荧光和高频 …