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A platform for research: civil engineering, architecture and urbanism
Study on Influence of Jet Diffusion Flame Characteristics of Rectangular Nozzles by Cross-wind Flow in Different Directions
In this paper, propane was used as the research object, and the self-built experimental platform was used to study the influence of two different cross-wind directions on the flame characteristics such as the blow-out limit on the rectangular nozzle diffusion flame, flame shape and flame mean length. The experimental results show that when the fuel jet velocity is low, the cross-wind directions has little effect on the flame blow-out limit. As the fuel jet velocity increases, the cross-wind directions has a greater influence on the flame blow-out limit. And when the cross-wind acts vertically on the cross section of the nozzle, the flame tends to be down-wash. When the cross-wind horizontally acts on the cross section of the nozzle, the flame is easy to exhibit the lift-off phenomenon. It is found that the flame length monotonously increases with the increase of the momentum flux ratio of fuel jet to cross-wind when the cross-wind horizontally acts on the nozzle section, but the flame length shows two growth curves with increases of the momentum flux ratio when the cross-wind acts vertically on the nozzle section.
Study on Influence of Jet Diffusion Flame Characteristics of Rectangular Nozzles by Cross-wind Flow in Different Directions
In this paper, propane was used as the research object, and the self-built experimental platform was used to study the influence of two different cross-wind directions on the flame characteristics such as the blow-out limit on the rectangular nozzle diffusion flame, flame shape and flame mean length. The experimental results show that when the fuel jet velocity is low, the cross-wind directions has little effect on the flame blow-out limit. As the fuel jet velocity increases, the cross-wind directions has a greater influence on the flame blow-out limit. And when the cross-wind acts vertically on the cross section of the nozzle, the flame tends to be down-wash. When the cross-wind horizontally acts on the cross section of the nozzle, the flame is easy to exhibit the lift-off phenomenon. It is found that the flame length monotonously increases with the increase of the momentum flux ratio of fuel jet to cross-wind when the cross-wind horizontally acts on the nozzle section, but the flame length shows two growth curves with increases of the momentum flux ratio when the cross-wind acts vertically on the nozzle section.
Study on Influence of Jet Diffusion Flame Characteristics of Rectangular Nozzles by Cross-wind Flow in Different Directions
Huang, Linyuan (author) / Liu, Changchun (author) / Jiang, Hua (author)
2019-10-01
3075053 byte
Conference paper
Electronic Resource
English
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