基于FDS列车车厢火灾烟气危害分析研究

Analysis of Smoke Hazard in Train Compartment Fire Accidents based on FDS

列车车厢是非常特殊的密闭空间,发生火灾烟气危害非常大,是造成群死群伤的主要原因。本文分析了火灾烟气对人体伤害的主要特点,基于FDS软件采用CFD方法对列车车厢火灾引发的烟气流动进行数值模拟,计算分析了车厢内部火灾时烟气扩散过程,车厢空间各区域烟气浓度分布情况,温度的分布及变化趋势,并讨论分析了紧急状况下烟气和温度变化对列车人员疏散的影响。

The safety issue of high-speed rail is the hot social topic now. The high-speed rail train compartment is the special confined space which will bring about inestimable losses and influenceswhen itfires. In this paper the main characteristics of the fire smoke on human body is analyzed; CFD method is adopted to simulate the smoke flow caused by train compartment fire based on the PHOENICS software; it is calculated and analyzed the smoke diffusion processwhen in compartment internal fire, smoke concentration distribution and the distribution and changing trend of temperature; and at last the impact of smoke and temperature changing on the evacuation in emergency is discussed.