摘要
为探索人员密集的大型公建火灾科学逃生机理,选择"L"形写字楼标准楼层为例,采用CFD计算软件FLUENT,设定了四种逃生出口开启条件,开展数值仿真试验研究,通过分析发现:不同逃生出口条件会导致逃生路径适宜程度有较大差异;高温和烟气聚集区位置出现在风阻最小的走廊一侧,沿壁逃生可能加重伤害;最短的逃生路径不一定是最优的逃生路径;FLUENT软件能较好地模拟相对密闭空间的火灾温度场和烟气场。
In order to explore the escape mechanism science of personnel intensive large-scale public buildings crowded fire,we chose a ＂L＂shaped standard office floors for simulation test. In this test we have set four different conditions of export and use the CFD calculation software FLUENT,found that： the different exits conditions lead to the different of suitability degree in escape route. The high temperature and the zone of gas accumulation are appeared the floor which the windage is least,and the shortest path is not necessarily the best. Last of all,the FLUENT software proves to be useful to simulate the relatively closed space fire temperature field and secondary gas diffusion.
出处
《山西建筑》
2015年第31期227-229,共3页
Shanxi Architecture
关键词
火灾
温度场
烟气场
逃生路径
FLUENT
fire
temperature field
secondary gas diffusion
escape route
FLUENT
