Frequency jump of a flickering buoyant jet diffusion flame influenced by ambient coflow

H Zhang, Y Yang, L Li, Y Peng, X Xia, F Qi - Proceedings of the …, 2024 - Elsevier
Flickering of laminar diffusion flames is known to be caused by the buoyancy-induced
toroidal vortices attached to the outer flame surface, making a classical model for …

Dynamical mode recognition of triple flickering buoyant diffusion flames in Wasserstein space

Y Chi, T Yang, P Zhang - Combustion and Flame, 2023 - Elsevier
Triple flickering buoyant diffusion flames in an isosceles triangle arrangement, as a
nonlinear dynamical system of coupled oscillators, were experimentally studied. The focus …

Mechanism and effect assessment of sub-atmospheric pressure and co-flow air to suppress the flicker of buoyancy-driven methane laminar diffusion flame

X Yang, S Ma, J Gao, Q Du, Y Zhang, H Dong… - Fuel Processing …, 2023 - Elsevier
To further reduce the combustion instability behavior in high-altitude areas, a synergistic
suppression of buoyancy-driven methane laminar diffusion flame flicker was achieved by …

Soot aggregate morphology deduced from thermophoretic sampling in coflow laminar methane diffusion flames at pressures up to 30 bar

AE Karataş, B Gigone, ÖL Gülder - Combustion and Flame, 2020 - Elsevier
A high pressure combustion chamber, housing a co-flow burner and a novel thermophoretic
soot sampling system, was used to collect soot samples from methane-air diffusion flames at …

Experimental study of buoyancy-induced instability in the DME and LPG jet diffusion flame

GM Nayak, P Kolhe, S Balusamy - Fuel, 2021 - Elsevier
An experimental study is conducted on the buoyant jet diffusion flames to explore the
interaction between the fuel jet and the outer vortex and their impact on the flame structure …

On the influence of distance between two jets on flickering diffusion flames

L Changchun, L Xinlei, G Hong, D Jun, Z Shasha… - Combustion and …, 2019 - Elsevier
The interactions of multiple flames are often encountered in real-world fire and industrial
burners. The distance between two jets has a strong influence on the instability mode …

Synchronization of dual diffusion flame in co-flow

N Fujisawa, K Imaizumi, T Yamagata - Experimental Thermal and Fluid …, 2020 - Elsevier
In this study, the interaction of two adjacent diffusion flames (dual flame) were
experimentally investigated using the direct imaging method and particle image velocimetry …

Suppression effect prediction of mixed combustion with ammonia under sub-atmospheric pressure on flicker of methane laminar diffusion flame

X Yang, S Ma, J Gao, Q Du, Y Zhang, H Dong - Energy, 2024 - Elsevier
In high-altitude areas, suppressing the flicker of methane laminar diffusion flame and
reducing carbon emissions simultaneously is a challenge. This paper proposes a …

Flow visualization study of a diffusion flame under acoustic excitation

N Fujisawa, K Iwasaki, K Fujisawa, T Yamagata - Fuel, 2019 - Elsevier
The behavior of a diffusion flame under acoustic excitation was experimentally studied with
the aid of simultaneous flow visualizations of the flame combining Mie scattering and …

Observation of large-scale structure in flickering diffusion flame by time-resolved particle image velocimetry and shadowgraph imaging

N Fujisawa, K Sakai, T Yamagata - Experimental Thermal and Fluid …, 2018 - Elsevier
In order to understand the flow structure of a flickering flame, time-resolved observations are
carried out of the velocity and density fields in a diffusion flame in co-flow using particle …