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Role of barriers in the airborne spread of virus-containing droplets: A study based on high-resolution direct numerical simulations
https://oist.repo.nii.ac.jp/records/2686
https://oist.repo.nii.ac.jp/records/2686e63a97bb-77f2-4d2f-8a42-b03e22b8b8c7
名前 / ファイル | ライセンス | アクション |
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5.0072840 (3.1 MB)
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CC BY 4.0
Creative Commons Attribution 4.0 International (https://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Role of barriers in the airborne spread of virus-containing droplets: A study based on high-resolution direct numerical simulations | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Cavaiola, M.
× Cavaiola, M.× Olivieri, S.× Guerrero, J.× Mazzino, A.× Rosti, M. E. |
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書誌情報 |
en : Physics of Fluids 巻 34, 号 1, p. 015104, 発行日 2022-01-05 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | State-of-the-art direct numerical simulations are exploited to study the role of barriers on the airborne spread of virus-containing droplets. Our study is motivated by recent findings pointing to the key role of turbulence in dictating the final fate of virus-containing droplets in violent human exhalations. Here, all active scales of motion have been explicitly taken into account, including their interplay with the droplet evaporation process occurring once droplets are emitted in a drier ambient air, and accounting for the time-varying droplet inertia due to the water loss via evaporation. We show that barriers commonly used to mitigate the airborne spread of the virus cause nontrivial dynamical effects influencing the final reach of the virus-containing droplets, not always being beneficial to this aim. These conclusions do depend on the relative humidity of the ambient condition, and in particular whether the ambient humidity is above or below the so-called efflorescence relative humidity. Our findings provide a physically based answer to the question on how effective barriers are to protect people from airborne virus transmission in indoor environments. | |||||
出版者 | ||||||
出版者 | American Institute of Physics | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070-6631 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1089-7666 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1063/5.0072840 | |||||
権利 | ||||||
権利情報 | © 2022 The Author(s) | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/10.1063/5.0072840 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |