地铁站内脏弹爆炸烟团扩散的仿真研究  

Simulation study on diffusion of smoke cluster from dirty bomb explosion in subway station

作　　者：段中山[1] 袁涛[2] 冯孝杰[1] 秦兵[1] 曾晨浩 

机构地区：[1]后勤工程学院,重庆404100 [2]第二炮兵指挥学院,武汉430000

出　　处：《辐射防护》2016年第5期279-284,290,共7页Radiation Protection

摘　　要：针对地铁站内脏弹爆炸烟团扩散问题,以计算流体力学(CFD)为理论基础,用FLUENT软件建立离散相模型(DPM)进行数值仿真。通过比较不同的爆炸载荷系数β和通风系统,分析了不同装药的脏弹对爆炸产生的PM_(10)粒子在室内运动的规律和浓度,同时进一步研究了通风系统对颗粒扩散的影响,为脏弹恐怖事件的辐射防护和应急救援提供源项参考。Based on the CFD theory, a discrete phase model （DPM） was developed using FLUENT for digital simulation. By comparing different explosive load factorβ and ventilation system, the motion law and concentration of PM10 particles were analyzed. Finally, this paper studied the effect of ventilation system on particle dispersion and provided a theoretical reference to the radiological protection and emergency response to dirty bomb incidence.

关 键 词：脏弹 烟团扩散 DPM 颗粒物 

分 类 号：U231.96[交通运输工程—道路与铁道工程]