摘要
武警部队在反恐处突行动中会择机向室内施放刺激剂,以实现对目标的刺激作用。针对刺激剂室内效能仿真,传统方法利用Fluent软件对刺激剂的室内扩散进行模拟,但忽略了实际室内环境中的气流组织特征。采用计算流体力学方法对一种机械通风条件下房间中流场进行仿真计算,通过与实验结果对比验证了风场分布;运用离散相模型对刺激剂CS在此种风场条件下的扩散进行了数值模拟,得到了刺激剂浓度分布演化规律,并分析了作用效能。结果表明,使用计算流体力学方法结合RNG k-ε湍流模型能够很好地反映实际流场中的主要流动趋势以及刺激剂的扩散规律,为刺激剂室内效能仿真提供了有效途径。
In order to stimulate the target,the Armed Police Force will choose opportunity to apply irritant agent indoors in operations of anti-terror and handling sudden affairs.To the simulation of indoor efficiency of irritant agent,the traditional methods use Fluent software to simulate the indoor diffusion of irritant agent.However,they neglect the characteristics of air distribution in actual indoor environment.In the paper,the computational fluid dynamics method was used to simulate the flow field in a room under mechanical ventilation,and the wind field distribution was verified by comparing with the experimental results.The dispersion of irritant agent CS in this wind field was simulated by using the discrete phase model.The evolution law of the concentration distribution of CS was obtained,and the efficiency was analyzed.The results indicate that the computational fluid dynamics method combined with RNG k-εturbulence model can reflect the main flow trends in the actual flow field and the diffusion of irritant agent,which provides an effective way for the simulation of indoor efficiency of irritant agent.
作者
徐路程
宋伟伟
肖凯涛
汪海涛
XU Lu-cheng;SONG Wei-wei;XIAO Kai-tao;WANG Hai-tao(Research Institution of Chemical Defense,Academy of Military Sciences,Beijing 102205,China;State Key Laboratory of NBC Protection for Civilian,Beijing 102205,China)
出处
《计算机仿真》
北大核心
2020年第8期12-16,共5页
Computer Simulation
基金
自然科学基金资助项目(基金项目号:21177158,21876202)。
关键词
刺激剂
室内效能
数值仿真
扩散模拟
计算流体力学
离散相模型
Irritant agent
indoor efficiency
Numerical simulation
Dispersion simulation
Computational fluid dynamics
Discrete phase model
作者简介
徐路程(1990-),男(汉族),吉林省通化市人,助理研究员,主要研究领域为气溶胶扩散计算机仿真;宋伟伟(1981-),女(汉族),山东省聊城市人,副研究员,主要研究领域为大气扩散数值模拟与仿真;肖凯涛(1963-),男(汉族),湖南省邵阳市人,高级工程师,硕士研究生导师,主要研究领域为特种装备评价使用;汪海涛(1972-),男(汉族),辽宁省沈阳市人,研究员,硕士研究生导师,主要研究领域为大气反应动力学。
