利用数值重构技术研究火灾热蚀图痕的可行性  

The probability of researching the thermal ablation patternon by numerical reconstruction

作　　者：徐晓楠[1] 吴迪[2] 韩娜[3] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000 [2]重庆市消防总队,重庆401147 [3]天津市消防总队,天津300090

出　　处：《消防科学与技术》2012年第7期765-768,共4页Fire Science and Technology

基　　金：公安部应用创新计划"火灾事故调查中火灾图痕的形成机理及数值重构技术研究"(2011YYCXWJXY134)

摘　　要：从壁面热蚀痕迹的形成机理出发,根据影响热蚀痕迹形成的因素,借助数学方法建立了以壁面热负荷的累积效应来表征痕迹深浅程度的半物理预测模型,并嵌入FDS源程序,成功将半物理预测模型与FDS源程序耦合,实现了壁面热蚀痕迹的数值重构,弥补了现有软件的不足,进一步完善了数值重构技术。Starting from the formation mechanism of the wall thermal erosion traces, and according to the factors influencing the thermal erosion trace formation, a semi-physical prediction model of characterizing the degree of difficulty of the traces by the cumulative effects of wall heat load was established. The model was embedded in FDS source code, which reconstructed the thermal ablation pattern. The study compensated for the deficiencies of the existing software, and improved the numeri cal reconstruction technique.

关 键 词：热蚀痕迹 数值重构 FDS 火灾调查 

分 类 号：X928.7[环境科学与工程—安全科学] TU998.12[建筑科学—市政工程]