摘要
为了研究船舶封闭舱室火灾轰燃现象,首先用非线性动力学方程分析了燃烧过程中热增益与热损失对轰燃的影响,界定了轰燃发生的临近判据;其次进行火场实验,重构了目标舱室火灾轰燃现象,并应用FDS软件对火场实验进行数值模拟,将所得数据进行对比分析,得出数值模拟方法在火灾轰燃重构研究中的高效性、可行性的结论,为使用数值模拟研究手段回溯火灾发展过程,进行火灾事故调查提供理论依据。
In order to study the phenomenon of flashover in the closed cabin, the heat gain and heat loss in the combustion process by nonlinear dynamic equations were analyzed firstly, which lead to the occurrence of flashover, and the criterion of the flashover was defined; Secondly, the fire experiments and numerical reconstruction of fire experiment by FDS were carried out to analyze the resulting data. The numerical simulation method was efficiency and feasible to the reconstruction of fire flashover study. It could be the reference to the usage of nu- merical simulation in the backtracking of fire development process.
出处
《消防科学与技术》
CAS
北大核心
2013年第4期354-357,共4页
Fire Science and Technology
基金
国家部委基金项目(9140A1404091JB1101)
关键词
火灾
轰燃
重构
封闭舱室
数值模拟
fire flashover
reconstruction closed cabin
nu-merical simulation
