Effects of ventilation on the indoor spread of COVID-19

Although the relative importance of airborne transmission of the SARS-CoV-2 virus is controversial, increasing evidence suggests that understanding airflows is important for estimation of the risk of contracting COVID-19. The data available so far indicate that indoor transmission of the virus far o...

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Veröffentlicht in:Journal of fluid mechanics Jg. 903; S. F1
Hauptverfasser: Bhagat, Rajesh K., Davies Wykes, M. S., Dalziel, Stuart B., Linden, P. F.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Cambridge, UK Cambridge University Press 28.09.2020
Schlagworte:
Aerodynamics
Aerosols
Air flow
Air pollution
Asymptomatic
Buildings
Coronaviruses
COVID-19
Disease transmission
Epidemics
Fluid dynamics
Fluid flow
Fluid mechanics
Focus on Fluids
Heat
Indoor air quality
Public buildings
Severe acute respiratory syndrome coronavirus 2
Turbulence
Ventilation
Viruses
plumes/thermals
drops
turbulent mixing
ISSN:0022-1120, 1469-7645
Online-Zugang:Volltext
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Zusammenfassung:Although the relative importance of airborne transmission of the SARS-CoV-2 virus is controversial, increasing evidence suggests that understanding airflows is important for estimation of the risk of contracting COVID-19. The data available so far indicate that indoor transmission of the virus far outstrips outdoor transmission, possibly due to longer exposure times and the decreased turbulence levels (and therefore dispersion) found indoors. In this paper we discuss the role of building ventilation on the possible pathways of airborne particles and examine the fluid mechanics of the processes involved.
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ISSN:0022-1120
1469-7645
DOI:10.1017/jfm.2020.720