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Investigation of sidewall height effect on the burning rate and flame tilt characteristics of pool fire in cross wind
Fire Safety Journal ( IF 3.4 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.firesaf.2020.103111
Xiao Chen , Zhiwei Ding , Shouxiang Lu

Abstract In the current study the combining effect of sidewall height and cross air flow on the mass burning rate, flame height and flame tilt behavior of pool fire has been experimentally investigated. The mass burning rate increases as the cross wind velocity increases. The presence of sidewalls also influences the mass burning rate, as it is increased at lower cross wind velocities and decreased as this velocity further increases. A dimensionless parameter is introduced to illustrate the sidewall height effect on the mass burning rate. The effect of sidewall height on burning rate, flame height, and flame tilt angle of pool fire is further investigated. The flame height is an exponential function of a new dimensionless parameter F r ˜ . Based on the experimental results, new empirical correlations are proposed to predict flame height and flame tilt angle α in relation to the combining effects of sidewall height and cross wind.

中文翻译:

侧风条件下池火燃烧速率和火焰倾斜特性的侧壁高度影响研究

摘要 在目前的研究中,通过实验研究了侧壁高度和交叉气流对池火的质量燃烧率、火焰高度和火焰倾斜行为的综合影响。质量燃烧率随着侧风速度的增加而增加。侧壁的存在也会影响质量燃烧率,因为它在较低的侧风速度下增加,并随着该速度的进一步增加而减少。引入无量纲参数来说明侧壁高度对质量燃烧速率的影响。进一步研究了侧壁高度对池火燃烧速率、火焰高度和火焰倾斜角的影响。火焰高度是一个新的无量纲参数 F r ~ 的指数函数。根据实验结果,
更新日期:2020-05-01
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