双火旋风相互作用规律的实验研究

Experimental Study on the Regular Interaction Pattern of Fire Bi-swirl

双火旋风作为一种危害性巨大的火灾现象,目前尚未见到实验室条件下对其规律和特征进行研究的公开资料,因此,开展双火旋风相互作用规律的研究具有重要价值。依托自行研发的双火旋风实验装置开展了3种直径的油盘实验,共得到15个油盘火旋风数据。测量了火旋风燃烧的主要特征参量,通过一系列实验数据分析了双火旋风的质量损失速率、火焰高度等动力学特性,以及这些动力学特性随火源尺寸、环境涡量场等参数变化的规律。

As a dangerous fire phenomenon of bi-swirl, there is no open data showing any research on its regularity and characteristics under laboratory conditions at present. Therefore, it is of great value to study the interaction pattern of the two fire whirl. Three kinds of oil pan experiments were carried out based on the self- developed fire whirl experiment device and 15 data were obtained totally. The main characteristic parameters of swirl combustion were measured experimentally. The mass loss rate, flame height and other dynamic characteristics of the fire bi-swirl, and also the variation of these characteristics with the fire size, ambient vorticity field and other parameters were analyzed through a series of experimental data.