外加环量作用下单油盘火旋风实验研究

Experimental study on fire whirl of single oil pan under the plus circulation function

利用半开放式火旋风实验装置开展了三种直径的油盘和三种外加环量的火旋风实验,应用Origin软件对数据进行分析并对比普通池火,得出不同尺寸油盘和环境流场参数条件下火旋风的火焰高度、质量燃烧速率的变化规律。提出火旋风质量燃烧速率、火焰高度的半经验线性关系式,分析预测模型与前人不同的原因。

Using half open fire whirlwind experiment device, fire whirlwind experiment was carried out by three kind of oil pan diameter and three kind of plus circulation function. Applying Origin software to analyze the data and compare with ordinary pool fire, the flame height, the change rule of mass burning rate of the fire whirlwind with different sizes oil pan and environmental flow field parameters were gotten. The semi--empirical linear relation of fire whirlwind mass burning rate, flame height were gotten. The reason of the forecasting model being different from previous ones was analyzed.