The present article investigates the interactions between the pilot and main flames in a novel
stratified swirl burner using both experimental and numerical methods. Experiments are …

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

Abstract Large Eddy Simulation (LES) is conducted for the combustion instabilities of the
stratified swirling flames. Two different pilot-stage equivalence ratios (Φ p), 0 (lifted flame) …

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 …

Flame structures and thermoacoustic instabilities of centrally-staged swirl flames fueled with
methane at atmospheric pressure are experimentally investigated by varying the …

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 …

Multi-bifurcation behaviors of staged swirl flames fueled with methane at atmospheric
pressure are experimentally investigated by varying the global equivalence ratio (⁠ ϕ glo⁠) …

A computational model for premixed methane-air flame under the flame-wall interaction was
established based on CFD software and experimentally verified. The head-on quenching …

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 the start-up process of practical gas turbine applications, the modulation of operating
condition, especially the variation of global equivalence ratios (ϕ glo), could cause the …