Evacuation dynamics with fire spreading based on cellular automaton
Evacuation dynamics with fire spreading based on cellular automaton
复制标题
基于元胞自动机的火灾蔓延疏散动力学
DOI：
10.1016/j.physa.2011.04.011
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发表时间：
2011-09-15
影响因子：
3.3
通讯作者：
Zhu, Nuo
中科院分区：
文献类型：
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作者：
Zheng, Ying;Jia, Bin;Zhu, Nuo
研究了火灾蔓延对行人疏散的影响。提出了一种扩展的地板场模型。在新模型中，通过引入火灾楼层场，考虑了火灾对人员疏散的影响。因此，地板场强由静态、动态和火灾地板场加权。对疏散过程中的动力学行为进行了数值模拟研究。详细分析了火灾楼层场权重、火灾蔓延率等参数对人员疏散效率的影响。模拟结果表明，疏散出房间的行人数量与火灾发生的初始位置和房间的结构高度相关。这些结果对设计恐慌情况下的疏散策略具有一定的指导意义。(C)2011 Elsevier B.V.保留所有权利。
This paper investigates the dynamics of pedestrian evacuation with the influence of the fire spreading. An extended floor field model is proposed. In the new model, the effect of fire on the evacuation is considered by introducing the fire floor field. Thus, the floor field intensity is weighted by static, dynamic and fire floor fields. Numerical simulations are carried out to study the dynamics in the process of the evacuation. The influence of the parameters weight of fire floor field, fire spread rate - on the evacuation efficiency is analyzed in detail. The simulation results show that the number of pedestrians evacuated out of the room is highly related to both the original location of the fire and the configuration of the room. Those results can bring some guidance to design the evacuation strategy in panic situation. (C) 2011 Elsevier B.V. All rights reserved.