室内火灾喷出和旋转火焰的实验和数值模拟  

Experimental and numerical simulations of extrusive and whirling flames in enclosure fires

作　　者：陈爱平[1] 宋飞 崔晓星 

机构地区：[1]中国人民武装警察部队学院消防工程系,廊坊065000 [2]上海市消防总队特勤支队,上海200335 [3]河北省消防总队唐山市支队,唐山063000

出　　处：《火灾科学》2010年第1期11-18,共8页Fire Safety Science

基　　金：公安部应用创新项目资助;课题编号:2009YYCXWJXY112

摘　　要：喷出火焰和旋转火焰是室内火灾火焰的两种常见存在形式。利用小规模室内火灾试验装置和FDS软件,对室内火灾喷出火焰和旋转火焰进行了实验模拟和数值模拟;根据模拟结果,提出了小规模室内火灾条件下喷出火焰根部温度估算公式,分析了室内火灾火焰旋转的机理及其引起热烟气层温度、地板辐射热通量等参数升高的原因。Extrusive flames and whirling ones are two common presences of flame of enclosure fires. The two kinds of flames in enclosure fires are experimentally and numerically simulated separately in a small-scale enclosure fire test device and by FDS software. According to simulated results, the equation of estimating root temperatures of extrusive flames of small-scale enclosure fires is put forward, and the mechanism of whirling flames and causes for increase of some parameters such as hot gas layer temperatures and floor radiant heat flux are analysed.

关 键 词：室内火灾 实验和数值模拟 喷出火焰 旋转火焰 

分 类 号：TK121[动力工程及工程热物理—工程热物理]