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 …

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 …

Pre-trained combustion model and transfer learning in thermoacoustic instability

Z Qin, X Wang, X Han, Y Lin, Y Zhou - Physics of Fluids, 2023 - pubs.aip.org
In this paper, deep learning is involved to comprehend thermoacoustic instability more
deeply and achieve early warning more reliably. Flame images and pressure series are …

[HTML][HTML] The flame macrostructure and thermoacoustic instability in a centrally staged burner operating in different pilot stage equivalence ratios

J Xiang, J Li, W Mo, B Wang, D Yang, X Gan - Physics of Fluids, 2024 - pubs.aip.org
The main focus of this paper is to discover the link between flame macrostructure and
thermoacoustic instability in a centrally staged swirl burner. In practical combustors, the flow …

Experimental and numerical study on flow/flame interactions and pollutant emissions of premixed methane-air flames with enhanced lean blowout hydrogen injection

MA Nemitallah, A Abdelhalim, A Abdelhafez… - International Journal of …, 2024 - Elsevier
This study investigates experimentally and numerically the stability, combustion, and
emissions characteristics of premixed swirl-stabilized methane/air flames with enhanced …

Supercritical bifurcations and nonlinear mode interactions of combustion instabilities in a centrally-staged swirl spray combustor

J Zhang, X Hui, X Xue, L Li, J Wang, CJ Sung - Applied Energy, 2025 - Elsevier
Centrally-staged combustors, characterized by a center pilot flame surrounded by an annual
main stage flame, are widely used in modern aeroengines to achieve low NO x emissions …

Effects of fuel/air mixing distances on combustion instabilities in non-premixed combustion

J Cheng, B Liu, T Zhu - Physics of Fluids, 2024 - pubs.aip.org
Combustion instability has been widely reported in several combustion types; however,
there is limited information on different fuel/air mixing distances in non-premixed …

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 …

[PDF][PDF] Effects of fuel/air mixing distances on combustion instabilities in non-premixed 1 com bustion 2

J Cheng, B Liu, T Zhu - researchgate.net
Combustion instability (CI) has been widely reported in several combustion types, however,
8 there is limited information on different fuel/air mixing distances in non-premixed …