应用FD S进行单室火灾场模拟分析

摘要

T heoretical and experim ental results of sim ulation-based m ethod in this article is based on proven fire, and sm oke-proliferation architecture, the application of the U .S. B ureau of Standards and T echnology research tools developed field m odelFD S,carried outfor a single room fire field sim ulation analysis.T he results show ed that:the heat release rate of the fire source value, the value of the fire room heat, have m ajor im pact on the distribution of gas concentration and tem perature field house features a single room doors status,along w ith the source offire heatrelease rate increases, indoor hot flue gas tem perature rises rapidly, and the bigger house ventilation area, the m ore intense the firedevelopm ent,thehighertheupperhotgastem perature,thehighertheoveralltem peratureoftheroom .Resultsofthis study for the fire controlroom have a certain reference value.%本文基于成熟的火灾模拟方法，和建筑烟气扩散领域的理论及实验成果基础上，应用美国标准技术研究局开发的场模型工具FD S，对单室火灾进行了场模拟分析。结果显示：火源的释热率值、房屋的单室门窗状况等对着火房间内热值、烟气浓度以及温度场的分布特性的均有主要影响，随着火源释热率的增大，室内热烟气的温度迅速升高，而且房屋的通风面积越大，火灾发展越剧烈，上层热烟气温度越高，室内整体温度也越高。本文的研究结果对于房间内火灾控制具有一定的参考价值。