Influence of injection scheme on flame characteristics in partially premixed combustion

Zhao, Shilong; Fan, Yi; Deng, Tiantai; Crookes, Danny

doi:10.1016/j.energy.2020.118058

Cited by 11 publications

(1 citation statement)

References 18 publications

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“…For flame stabilization provided by recirculation zones, various structures including cavities, 1 , 2 steps, 3 , 4 and bluff-bodies have served as a classic design 5 , 6 in the context of premixed 7 − 9 and partially premixed combustion 10 , 11 applications. The flame stabilizing principle of the bluff-body is to generate recirculation flow inside the wake zones to extend the residence time of reactants and achieve a stabilized flame.…”

Section: Introductionmentioning

confidence: 99%

Partially Premixed Ignition for a Bluff-Body Flameholder under Various Igniter and Inlet Conditions

Zhang

2021

ACS Omega

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This study applies experimental methods to investigate the partially premixed ignition characteristics of a bluff-body flameholder with a pilot stage. The ignition fuel–air ratio (FAR) under different igniter and inlet conditions is obtained, while the ignition process is recorded with a high-speed photography device. Numerical simulations are carried out to investigate the relationship between the flow field, fuel distribution, and ignition process. The results show that a higher total capacitance energy storage of the igniter, inlet Mach number, or total pressure inside the combustion chamber will help increase the ignition performance, accelerate the development of the flame, and shorten the ignition delay. The flame propagation routine of the flameholder is controlled by several pairs of symmetrical recirculation zones behind the flameholder structure and the specific uneven fuel distribution caused by the flow field. This study provides a detailed understanding of the ignition process for the bluff-body flameholder.

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Section: Introductionmentioning

confidence: 99%

Partially Premixed Ignition for a Bluff-Body Flameholder under Various Igniter and Inlet Conditions

Zhang

2021

ACS Omega

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Influence of time-varying flow on dynamic flame characteristics in VCE: Numerical and experimental study

Xiao,

Zhao,

et al. 2024

Applied Thermal Engineering

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Experimental and numerical study of flow and ignition and lean blowout characteristics of jet-cooled wall flameholder in a dual-mode combustor

Chen

Fan

et al. 2022

Aerospace Science and Technology

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Influence of injection scheme on flame characteristics in partially premixed combustion

Cited by 11 publications

References 18 publications

Partially Premixed Ignition for a Bluff-Body Flameholder under Various Igniter and Inlet Conditions

Partially Premixed Ignition for a Bluff-Body Flameholder under Various Igniter and Inlet Conditions

Influence of time-varying flow on dynamic flame characteristics in VCE: Numerical and experimental study

Experimental and numerical study of flow and ignition and lean blowout characteristics of jet-cooled wall flameholder in a dual-mode combustor

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