火灾环境下人员疏散耦合SPH模型及仿真

系统仿真学报 ›› 2016, Vol. 28 ›› Issue (2): 292-300.

火灾环境下人员疏散耦合SPH模型及仿真

苗志宏¹, 李智慧²

1.中国人民武装警察部队学院管理系,廊坊 065000;
2.中国人民武装警察部队学院科研部,廊坊 065000

收稿日期:2014-09-23 修回日期:2015-01-15 出版日期:2016-02-08 发布日期:2020-08-17
作者简介:苗志宏(1964-),男,藏族,云南迪庆,博士,教授,研究方向为模糊控制、火灾预防与控制等;李智慧(1981-),女,湖北黄石,博士,讲师,研究方向为火灾数值模拟和灭火救援仿真。
基金资助:
河北省科技计划项目(15275408D)

Coupling SPH Model for Occupant Evacuation in Fires and Simulation

Miao Zhihong¹, Li Zhihui²

1. Department of Management, The Chinese People's Armed Police Forces Academy, Langfang 065000, China;
2. Department of Scientific Research, The Chinese People's Armed Police Force Academy, Langfang 065000, Chna

Received:2014-09-23 Revised:2015-01-15 Online:2016-02-08 Published:2020-08-17

摘要/Abstract

摘要： 火灾环境下人员安全疏散计算机模型研究对建筑防火设计、减少人员伤亡等具有重要的指导意义。建立了一种考虑火灾环境因素的室内人员疏散耦合模型。建立了一种模拟人员运动的连续型模型,并利用光滑粒子流动力学方法(SPH)将模型离散化为粒子系统。给出了一种将火灾动力学模拟结果耦合到疏散模型中的方法,其中由火灾烟气蔓延参数来决定人员运动状态和失能情况。提出的模型能够比较准确的反映人员疏散的实际情况。

关键词: 人员疏散模型, 社会力模型, 光滑粒子流动力学(SPH), 火灾动力学模拟(FDS)

Abstract: Computer simulation of evacuation can be very helpful in building design for fire protection and reducing casualty in compartment fire. A coupling model for occupant evacuation building fires was proposed. A continuous model was composed by treating pedestrians movement as fluid movement, and by using Smoothed Particle Hydrodynamics method to discretize this continuous model, the model was transformed into a particle system. A method for coupling FDS into the occupant evacuation model was proposed, and the amounts of smoke density and smoke charge of pedestrian were used to determine the move direction of a pedestrian and to estimate whether a pedestrian incapacitated or not. The proposed model can simulate the phenomenon of evacuation more real and reasonable.

Key words: evacuation model, social force model, smoothed particle hydrodynamics (SPH), fire dynamics simulator (FDS)

中图分类号:

TP391

苗志宏, 李智慧. 火灾环境下人员疏散耦合SPH模型及仿真[J]. 系统仿真学报, 2016, 28(2): 292-300.

Miao Zhihong, Li Zhihui. Coupling SPH Model for Occupant Evacuation in Fires and Simulation[J]. Journal of System Simulation, 2016, 28(2): 292-300.

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