Influence of the co-and counter-swirl on combustion instability of the centrally staged combustor

J Ma, X Hui, M Han, X Han, X Wang, J Wang, Z Chi - Physics of Fluids, 2023 - pubs.aip.org
The centrally staged combustor is an effective way to reduce NOx emissions from
combustors. However, combustion instability caused by the mutual coupling between flames …

Interaction among flame structures and thermoacoustic instabilities in a centrally staged combustor

P Fu, Q Wen, L Hou, J Li, H Ma - Applied Thermal Engineering, 2024 - Elsevier
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 …

Experimental investigation of combustion instability in a centrally staged combustor under self-excited oscillation conditions

J Ma, M Han, X Han, X Hui, X Xue - Physics of Fluids, 2023 - pubs.aip.org
This paper presents an experimental investigation of combustion instability and flame
dynamics in a laboratory-scale lean premixed prevaporized centrally staged combustor …

Experimental investigation on dynamics of spray atomization, ignition, and flame propagation in an annular combustor

Z Zhu, J Hou, C Ma, G Wang - Physics of Fluids, 2024 - pubs.aip.org
The combustor employed in small and medium-sized turboshaft engines is characterized by
a small flame tube height and a large distance between adjacent burners, rendering it …

Large eddy simulation of a swirling kerosene spray flame: A proper orthogonal decomposition and wavelet transform analysis on the flow structure and hydroxyl …

K Wan, Y Huang, R Liu, Y He, M Lu, C Jiang - Physics of Fluids, 2024 - pubs.aip.org
The combustion performance can be promoted by the shear layer, recirculation zones, and
precessing vortex cores in the swirling flow field. The swirling flow promotes the mixing …

Effect of rear blunt body structure and inlet conditions on the flow and combustion characteristics of an advanced vortex combustor for a gas turbine

Q Wang, W Fan, J Yi, H Xu, R Zhang - Applied Thermal Engineering, 2025 - Elsevier
The rear blunt body plays a crucial role in the total performance of an advanced vortex
combustor. This paper presents a numerical simulation study on the flow and combustion …

Flame structure transition and instability excitation by pilot fuel in a centrally staged combustor

P Fu, S Li, L Hou, Q Wen, J Li, H Ma - Physics of Fluids, 2025 - pubs.aip.org
The pilot stage plays a crucial role in central-staged combustion technology. This study
aimed to investigate the impact of the jet-type pilot stage on the flame structure and …

Effect of air-injection mode on mainstream-forced entrainment and combustion characteristics of a cavity-based combustor

Y Zhao, C Gong, M Li - Physics of Fluids, 2024 - pubs.aip.org
The trapped vortex combustor (TVC) has shown promise for use in advanced aircraft
engines due to its high combustion efficiency, excellent stability, compact geometry, and low …

Experimental and numerical comparisons of geometric scaling criteria for lean premixed swirl combustor

W Xie, T Shi, B Ge, S Zang - Physics of Fluids, 2023 - pubs.aip.org
This study experimentally and numerically investigates the applicability of the Da I and Re
criteria for scaling the geometry of a lean premixed swirl combustor during a reaction and in …

Experimental study on spray ignition and blow out performances in a centrally staged annular combustor: Low pressure conditions

X Han, Y Chang, Z Wang, C Zhang, W Tao, Y Lin - Physics of Fluids, 2024 - pubs.aip.org
The ignition and flame propagation process within the centrally staged annular combustor is
considerably intricate, particularly under low pressure conditions. Experiments with …