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SARS-CoV motion dynamics: Linking in droplet size
(Elsevier, 2024) Aydin, Mehmet; Savaş, Seckin Aydin
The purpose of this study is to make a general comment on the models related to motion dynamics of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-laden respiratory droplets. Despite the interest in the topic due to the current pandemic, the published models are based on different assumptions with some limitations. In this chapter, the revised Aydin’s Research Team (ART) model has been used as a complementary model of Stokes’s law for the transport dynamics of a droplet of 1–2000?m in diameter under indoor and outdoor conditions. Stokes’s equation yields an accurate description of the falling time only for a limited range of the droplet diameter (?50?m). The ARTrev model appears to be mainly applied to the respiratory droplet size larger than or equal to 50?m, with the main finding that the settling duration of a droplet from 1.7m height to ground varied between 27.86s for a diameter of 50?m and 0.14s for a diameter of 2000?m under calm air conditions. The droplets ?15?m evaporated completely within the falling duration, and the droplet nuclei with a virus could stay suspended in the air as an aerosol for a long time. © 2024 by Elsevier Inc. All rights reserved.