侧壁开口形状对受限空间火灾发展影响的研究

Study on the impact of side-wall opening shape upon confined space fire development

为探究侧壁开口不同的形状下对受限空间火灾的影响,基于FDS大涡模拟,对6种不同工况时的受限空间火灾进行模拟,并对其温度、风速及HRR分别进行分析,得到在通风因子不变的前提下,开口自身宽度越小高度越高,室内火灾温度和热释放速率越高。

In order to explore the impact of different side-wall opening shapes upon confined space fire,based on FDS large eddy simulation(LES),the paper simulates the confined space fire under 6 kinds of working conditions,analyzes the temperature,wind speed and HRR,and finally draws an conclusion that:in the premise of fixed ventilation factor,the smaller of the side-wall opening width is,the higher of the height will be,the higher of the indoor fire temperature and thermal release rate will be.