摘要
采用欧拉-拉格朗日方法模拟了咳嗽释放的含病毒气溶胶颗粒在封闭通风室内空间的扩散过程。结果表明,在封闭和通风条件下,室内气溶胶颗粒质量浓度分布存在显著差异。通风可加速室内含病毒气溶胶颗粒质量浓度降低,并减小人体暴露风险。此外,在通风情况下,增加风速可有效降低室内含病毒气溶胶颗粒质量浓度。研究结果可为降低室内空间呼吸道病毒暴露的风险和选择合适的通风方案提供参考。
This paper uses the Euler-Lagrange method to simulate the diffusion process of virus-containing aerosol particles released by coughing in a closed,ventilated indoor space.It is found that there is a significant difference in the concentration distribution of indoor aerosol particles under closed and ventilated conditions.Ventilation can accelerate the reduction of virus containing aerosol particles indoors and reduce the risk of human exposure.In addition,in the case of ventilation,increasing wind speed can effectively reduce the mass concentration of indoor virus containing aerosol particles.The results in this work can provide reference for reducing the risk of respiratory virus exposure in indoor spaces and selecting appropriate ventilation schemes.
作者
韩森
黄亚欣
曹鑫
李钰
HAN Sen;HUANG Yaxin;CAO Xin;LI Yu(School of Civil Aviation,Xi'an Aeronautical Institute,Xi'an Shaanxi 710077,China;School of Environmental and Municipal Engineering,Xi'an University of Architecture and Technology,Xi'an Shaanxi 710055,China;School of Energy and Electrical Engineering,Chang'an University,Xi'an Shaanxi 710064,China)
出处
《工业安全与环保》
2025年第4期103-107,共5页
Industrial Safety and Environmental Protection
基金
国家自然科学基金(52006172)
陕西省自然科学基础研究计划面上项目(2024JC-YBMS-280)
国家博士后科研人员资助项目(GZC20232228)。
关键词
室内空气
含病毒气溶胶
扩散
沉降
离散相模型
indoor air
virus-containing aerosols
diffusion
sedimentation
discrete phase model
