基于有向图的舰艇舱室火灾蔓延计算研究

Study on Fire Spreading in Warship's Cabin Based on Directed Graph

针对舰艇舱室火灾种类多,危险度高,蔓延迅速,限制困难等特点,文中从有向图的原理和舰艇舱室结构特点出发,构建舰艇舱室有向图物理模型,建立舱室有向图矩阵数学表示,利用火灾学基本原理,按照回路内压力、温度平衡,建立舰艇舱室火灾蔓延数学模型,结合实例进行数值仿真计算.结果表明,舱室温度变化趋势符合外部条件影响,而且数值上和区域模拟软件CFAST计算误差不大,提出的方法适用于舰艇火灾蔓延规律研究.

Directed graph theory and warship cabin feature are described in the paper.First it builds warship cabin matrix expression model of directed graph,and uses principles of fire building pressure and temperature conservation equation in warship cabin loops.Then it uses all in the example,it is found that warship’s temperatures changing agrees with the changes of external conditions,and the calculation errors are small comparing with the finds calculated with CFASR soft.So the model can applied in the research on fire spreading law of warship cabin.