细水雾与火灾烟气相互作用的实验和数值模拟研究  

An experimental and numerical study on the interaction between water mist and smoke

作　　者：林霖[1] 房玉东[1] 翁韬[1] 张永丰[1] 廖光煊[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,合肥230027

出　　处：《中国工程科学》2008年第10期72-77,共6页Strategic Study of CAE

基　　金：国家自然科学基金重点资助项目(50536030)

摘　　要：通过模拟实验研究了细水雾与火灾烟气的相互作用,揭示了细水雾作用下烟气温度及组分浓度的变化规律。同时利用FDS程序计算了细水雾作用下烟气温度和组分浓度随时间的变化规律,利用实验数据对计算结果进行了准确性验证。结果表明只要计算网格匹配合理,FDS可以较为准确地预测细水雾作用下烟气温度和组分浓度的变化规律。在实际的细水雾灭火系统工程应用中,可以利用FDS场模拟方法预测灭火过程中火场温度及组分浓度等特性参数的变化规律,这对灭火系统的优化设计具有一定指导意义。This paper investigated the interaction between water mist and smoke in experiments, revealing the variation trends of smoke temperature and species concentrations. Variation trends were also obtained under the same scenes by FDS（fire dynamic simulator） simulation. Experiment results were compared with simulation. The comparison comes out that with reasonable computation gird setting, FDS can predict the variation trends quite well. In practical water mist system design, FDS may be applied to predict the behavior of the designed system.

关 键 词：火灾烟气 细水雾 FDS 

分 类 号：X932[环境科学与工程—安全科学]