摘要
研究了在一定高度下点燃蜡烛熄灭后产生的蜡烟可以使蜡烛复燃的现象.在蜡体持续的加热,温度大于熔点条件下进行实验.建立了以蜡体和毛细管组成的蜡烛模型,从理论和实验验证其与实际蜡烛的相似性.研究表明蜡烛熄灭后蜡烟浓度分布随高度呈现先减小后增大.
By heating the wax smoke produced by putting out a burning candle at a certain height could reignite the candle.The experiment was carried out under the condition that the wax body was heated continuously,and the temperature was greater than the melting point.The candle model composed of wax body and capillary tube was established,and the similarity between the model and the actual candle was verified theoretically and experimentally.The study shown that the distribution of wax smoke concentration decreased and then increased with the increase of the height of the candle.
作者
梁晋峰
刘丽飒
LIANG Jin-feng;LIU Li-sa(School of Physics,Nankai University,Tianjin 300071,China)
出处
《物理实验》
2019年第1期49-52,共4页
Physics Experimentation
关键词
蜡烛
燃烧
复燃
温度场分布
烟气扩散
candle burning
re-burning
temperature field distribution
flue gas diffusion
