基于PyroSim的古建筑火灾蔓延规律分析

Analysis of ancient building fire spreading law based on PyroSim

以某古建筑为研究对象,应用火灾动力学模拟软件PyroSim进行建模,分别设置7组不同的风速进行模拟,从CO、CO_2、关键位置的温度变化、能见度4个方面讨论,得到不同风速下的火灾蔓延规律,分别拟合得到风速与CO、CO_2之间的数学表达式。基于此,提出古建筑防火的措施建议。

An ancient building is taken as an example, and Pyro Sim was used to creat a model and simulate the fire under 7 dif ferent wind velocities. In points of CO eoncenfration, CO2 con- centration, temperature at key location and visibility, the fire spread law under different wind velocity were summarized, and the formula of wind velocity and CO concentration, and wind velocity and CO2 concentration were gotten. Based on the stud- y, fire prevention countermeasures of the ancient building were put forward.