[1]王佳文,江平,王旭.多火源火旋风相互作用的实验研究[J].中国安全生产科学技术,2017,13(9):144-151.[doi:10.11731/j.issn.1673-193x.2017.09.023]
WANG Jiawen,JIANG Ping,WANG Xu.Experimental research on interaction of fire whirls under multiple fire sources[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(9):144-151.[doi:10.11731/j.issn.1673-193x.2017.09.023]
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多火源火旋风相互作用的实验研究
WANG Jiawen,JIANG Ping,WANG Xu.Experimental research on interaction of fire whirls under multiple fire sources[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(9):144-151.[doi:10.11731/j.issn.1673-193x.2017.09.023]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 13
- 期数:
- 2017年9期
- 页码:
- 144-151
- 栏目:
- 现代职业安全卫生管理与技术
- 出版日期:
- 2017-09-30
文章信息/Info
- Title:
- Experimental research on interaction of fire whirls under multiple fire sources
- 文章编号:
- 1673-193X(2017)-09-0144-08
- Keywords:
- fire whirls under multiple fire sources; mass burning rate; flame height; velocity circulation
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为研究多火源条件下火旋风的相互作用，利用四面边墙夹缝式实验装置对3种不同直径油盘形成的火旋风进行实验研究。由电子天平记录的燃料质量随时间变化曲线，得到准稳态阶段火旋风的质量燃烧速率；利用摄像机记录的火焰连续图像，获得火焰高度；基于实验现象及实验数据对质量燃烧速率、火焰高度和火焰形态的分析，提出多火源火旋风质量燃烧速率和火焰高度的半经验线性关系式。研究表明：大直径油盘形成的火旋风比小直径油盘更容易受到拖拽力和涡量的作用影响。
- Abstract:
- To investigate the interaction of fire whirls under multiple fire sources, the experimental study on the fire whirls formed by three oil pans with different diameters was carried out by using the crack type experimental device with four side walls. The variation curve of fuel mass against time was recorded by the electronic balance, then the mass burning rate of fire whirl in the quasi-steady period was obtained. The flame height was obtained by using the continuous fire images recorded by the camera. The semi-empirical linear relation of mass burning rate and flame height for the fire whirls under multiple fire sources were put forward based on the analysis on the experimental phenomena and experimental data of mass burning rate, flame height and flame shape. The results showed that the fire whirl formed by the oil pan with large diameter is more easily to be affected by the effect of drag force and vorticity compared with the fire whirl formed by the oil pan with small diameter.
参考文献/References:
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［2］雷佼.火旋风燃烧动力学的实验与理论研究［D］.合肥：中国科学技术大学,2012.
［3］江平,王爽,刘颖,等.油盘直径和高度对火旋风特征影响的试验研究［J］.中国安全科学学报,2015,25(9):66-72.
JIANG Ping, WANG Shuang, LIU Ying, et al. Experimental research on influence of fire source heights and diameters on characteristics of fire whirls［J］. China Safety Science Journal,2015,25(9):66-72.
［4］余罕元.火场进风口情况对火旋风特性影响的研究［D］.南京：南京理工大学大学,2014.
［5］王鹏飞.火旋风的火焰与流动特性研究［D］.合肥：中国科学技术大学,2015.
［6］Kuwana K, Sekimoto K, Minami T, Tashiro T, Saito K. Scale-model experiments of moving fire whirl over a line fire[J]. Proceedings of the Combustion Institute, 2013, 34(2): 2625-2631.
［7］Umscheid ME, Monteverdi JP, Davies JM, Photographs and analysis of an unusually large and long-lived fire whirl［J］. E-Journal of Severe Storms Meteorology, 2006, 1(2): 1-13.
［8］Soma S, Saito K. Reconstruction of fire whirls using scale models［J］. Combustion and Flame, 1991，86(3): 269-84.
［9］Kuwana K, Sekimoto K, Saio K, et al. Can we predict the occurrence of extreme fire whirls［J］. AIAA JOURNAL, 2007, 45(1): 9-16.
［10］Kuwana K, Sekimoto K, Saito K, et al. Scaling fire whirls［J］. Fire Safety Journal, 2008,43(4): 7-252.
［11］王爽,王振峰,张卫,等.外加环量作用下单油盘火旋风实验研究［J］.消防科学与技术,2016,35(1):18-21.
WANG Shuang, WANG Zhenfeng, ZHANG Wei, et al. Experimental study on fire whirl of single oil pan under the plus circulation function\[J\]. Fire Science and Technology, 2016,35(1):18-21.
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