摘要
行人流连续模型直观地反映人群疏散过程中的疏散特征,本文基于行人流连续模型。研究行人在典型疏散场景下的疏散特征.在COMSOL中建立行人流连续模型及其方程,通过编写MATLAB代码,实现了连续模型及其循环求解框架.利用快速扫描法求解Eikonal方程得到背景场值,在每一步迭代循环中将背景场值作为模型的初始变量导入,调用COMSOL计算模块求解模型的瞬态控制方程.通过两个标准算例,重现了典型的行人流自组织现象,验证了连续模型的合理性.结果表明,本文的疏散仿真分析模型和计算程序是可靠的,疏散仿真分析可以为实际工程中的人员疏散方案的制定以及平面设计与安全布置等方面提供技术支撑.
The continuum model for pedestrian flow intuitively reflects the evacuation features of the crowd evacuation process.In this paper,the authors used the continuum model for pedestrian flow to study the evacuation feature of pedestrians in the typical evacuation scenario.The continuum model for pedestrian flow and its equations were established using COMSOL.The continuum model and its iterative calculation framework were implemented by developing code in MATLAB.The Eikonal equation was solved by the fast sweeping method to obtain the potential function.In each iteration loop,the potential function was imported as the initial variable,and the calculation module of COMSOL was called to solve the transient control equation of the model.The typical selforganization phenomena of pedestrian flow were reproduced in two standard examples,and the rationality of the continuum model was verified.The results showed that the model of evacuation simulation and the calculation program were reliable.The evacuation simulation analysis can provide technical support for the development of personnel evacuation schemes,function design and safety layout for practical engineerings.
作者
杨翊
王春江
赵金城
龚景海
YANG Yi;WANG Chunjiang;ZHAO Jincheng;GONG Jinghai(Department of Civil Engineering,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)
出处
《力学季刊》
CSCD
北大核心
2019年第4期733-739,共7页
Chinese Quarterly of Mechanics
基金
工业与信息化部《大型生活区人员应急与逃生技术研究》(工信部联装[2016]546号)
关键词
行人流连续模型
人员疏散
数值模拟
疏散特征
自组织现象
行人疏散动力学
continuum model for pedestrian flow
personnel evacuation
numerical simulation
evacuation feature
self-organization phenomenon
pedestrian evacuation dynamics
