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| Quantitative evaluation of precautions against the COVID-19 indoor transmission through human coughing | |
| Nie, Zhenguo1,2; Chen, Yunzhi3; Deng, Meifeng4,5 | |
| 2022 | |
| 发表期刊 | SCIENTIFIC REPORTS
 |
| ISSN | 2045-2322 |
| 卷号 | 12期号:1 |
| 摘要 | In this work, we focus on the dispersion of COVID-19-laden droplets using the transient computational fluid dynamics (CFD) modeling and simulation of the coughing process of virus carriers in an enclosure room, aiming to set up the basic prototype of popular precautionary strategies, i.e., face mask, upward ventilation, protective screen, or any combination thereof, against the indoor transmission of COVID-19 and other highly contagious diseases in the future. A multi-component Eulerian-Lagrangian CFD particle-tracking model with user-defined functions is utilized under 8 cases to examine the characteristics of droplet dispersion concerning the mass and heat transfer, droplet evaporation, air buoyancy, air convection, air-droplet friction, and turbulent dispersion. The result shows that implementing upward ventilation is the most effective measure, followed by wearing face masks. Protective screens can restrict the movement of the coughing droplets (though it will not reduce viral load). However, applying protective screens arranged with lean can be counterproductive in preventing the spread of COVID-19 when it is inappropriately placed with ventilation. The soundest solution is the combination of the face mask and upward ventilation, which can reduce the indoor infectious concentration by nearly 99.95% compared with the baseline without any precautionary strategies. With the resumption of school and work in the post-epidemic era, this study would provide intelligence-enhancing advice for the masses and rule-makers to curb the pandemic. |
| 学科领域 | Multidisciplinary Sciences |
| DOI | 10.1038/s41598-022-26837-0 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | FLOW-FIELD ; HUMAN-BODY ; DROPLETS ; EVAPORATION ; VENTILATION ; ENVIRONMENT ; DISPERSION ; INFECTION |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| WOS记录号 | WOS:000934089000017 |
| 出版者 | NATURE PORTFOLIO |
| 文献子类 | Article |
| 出版地 | BERLIN |
| 资助机构 | National Natural Science Foundation of China [52175237] ; Tsinghua Precision Medicine Foundation [2022TS009] |
| 作者邮箱 | zhenguonie@tsinghua.edu.cn |
| 作品OA属性 | Green Published, gold |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/28811 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.State Key Lab Tribol Adv Equipment, Beijing 100084, Peoples R China 3.Beijing Key Lab Precis Ultraprecis Mfg Equipments, Beijing 100084, Peoples R China 4.Dalian Maritime Univ, Marine Engn Coll, Dalian 116026, Liaoning, Peoples R China 5.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Zhenguo,Chen, Yunzhi,Deng, Meifeng. Quantitative evaluation of precautions against the COVID-19 indoor transmission through human coughing[J]. SCIENTIFIC REPORTS,2022,12(1). |
| APA | Nie, Zhenguo,Chen, Yunzhi,&Deng, Meifeng.(2022).Quantitative evaluation of precautions against the COVID-19 indoor transmission through human coughing.SCIENTIFIC REPORTS,12(1). |
| MLA | Nie, Zhenguo,et al."Quantitative evaluation of precautions against the COVID-19 indoor transmission through human coughing".SCIENTIFIC REPORTS 12.1(2022). |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Nie-2022-Quantitativ（6914KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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