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 …

Influence of inner shear layer on the emergence of central recirculation zone in a V-shaped premixed swirling flame

Q Wang, Y Ren, M Gu, B Yu, X Feng, F Qi, X Xia - Physics of Fluids, 2023 - pubs.aip.org
This paper presents an experimental study on the emergence of the central recirculation
zone (CRZ) in a basic V-shaped premixed swirling flame, using simultaneous measurement …

Experimental investigation of the helical mode in a stratified swirling flame

S Wang, J Zheng, L Xu, Q An, X Han, C Zhang, L Li… - Combustion and …, 2022 - Elsevier
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 …

Complex network analysis of a premixed swirling flame influenced by precessing vortex core

Y Ren, Q Wang, Y Guan, X Xia, F Qi - Physics of Fluids, 2024 - pubs.aip.org
This work investigates the influences of precessing vortex cores (PVCs) on the coherent
interactions in the transient flow and heat release fields of a weak premixed swirling flame …

Absolute instabilities and dynamics of helical vortices in twin annular swirling jets

J Zhang, X Hui, Q An, X Han, C Wang - Physics of Fluids, 2023 - pubs.aip.org
Modern low-emissions gas turbine combustors commonly employ a twin annular swirling
flow configuration that consists of a central annular inner jet and a surrounding annular outer …

Strong and weak interactions of a V-shaped premixed swirling flame with outer vortex rings

Y Ren, Q Wang, Y Peng, L Xu, X Xia, F Qi - Combustion and Flame, 2024 - Elsevier
This paper reports two distinct vortex-flame interaction mechanisms existing in a self-excited
V-shaped premixed flame. Time-resolved simultaneous measurements of particle image …

The interaction between in-cylinder turbulent flow and flame front propagation in an optical SI engine measured by high-speed PIV

Y Ikeda - Energies, 2022 - mdpi.com
The relationship between the flow field and flame propagation is essential in determining the
dynamics and effects of turbulent flow in an optical SI engine. In this study, high turbulence …

[HTML][HTML] Simultaneous 10 kHz PIV/OH-PLIF/chemiluminescence and conjoint data analysis approach for thermoacoustic oscillation near lean blowout

Z Cao, W Liu, X Yu, B Hu, J Peng, PH Qiu… - Applications in Energy …, 2025 - Elsevier
Simultaneous multi-parameter experimental data characterizing the flow-combustion
interaction process are of great significance for understanding the flame instability …

3D distribution of hot spots affected by flow and spray in a centrally staged combustor

C Tao, C Zhang, Q An, X Xue, J Gao, X Fan - Proceedings of the …, 2024 - Elsevier
This paper investigates the 3D distribution features of fuel, hot spots (HS), and velocity in a
centrally staged swirl spray combustor using particle image velocimetry (PIV) and …

Entropy: An Inspiring Tool for Characterizing Turbulence–Combustion Interaction in Swirling Flames via Direct Numerical Simulations of Non-Premixed and Premixed …

J Su, A Liu, H Xiao, K Luo, J Fan - Entropy, 2023 - mdpi.com
This article focuses on entropy generation in the combustion field, which serves as a useful
indicator to quantify the interaction between turbulence and combustion. The study is …