通风受限单室火灾回燃过程的大涡模拟  

Large eddy simulation on the process of backdraft of ventilation-limited single-chamber

作　　者：丁谢镔[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《消防科学与技术》2009年第6期396-400,共5页Fire Science and Technology

摘　　要：回燃现象以其突然性和巨大破坏性给人员安全带来极大威胁。建立典型的通风受限单室火灾模型进行了数值模拟,研究回燃现象随开门时间变化的发展规律,得出安全开门临界条件,并比较了三种常用扑救措施的可行性和有效性。Backdraft phenomenon is apparently a hazard fo the safety of people for its abruptness and its destructive power. The paper establishes a fire model in order to study the critical condition of baekdraft phenomenon and the development law of backdraft phenomenon changing with the opening hours. The fire model is a typical single-chamber which is ventilationlimited. The feasibility and effectiveness of three fire extinguishing measures which are in common use are compared, too.

关 键 词：回燃 通风受限 单室 临界条件 大涡模拟 

分 类 号：X913[环境科学与工程—安全科学] TU972[建筑科学—建筑设计及理论]