The flow physics of COVID-19
Rajat Mittal,Rui Ni,Jung Hee Seo +2 more
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In this article, the authors summarized what we know and what we need to learn about the science underlying these issues so that we are better prepared to tackle the next outbreak of COVID-19 or a similar disease.Abstract:
Flow physics plays a key role in nearly every facet of the COVID-19 pandemic. This includes the generation and aerosolization of virus-laden respiratory droplets from a host, its airborne dispersion and deposition on surfaces, as well as the subsequent inhalation of these bioaerosols by unsuspecting recipients. Fluid dynamics is also key to preventative measures such as the use of face masks, hand washing, ventilation of indoor environments and even social distancing. This article summarizes what we know and, more importantly, what we need to learn about the science underlying these issues so that we are better prepared to tackle the next outbreak of COVID-19 or a similar disease.read more
Citations
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European Resuscitation Council COVID-19 guidelines executive summary.
Jerry P. Nolan,Koenraad G. Monsieurs,Leo Bossaert,Leo Bossaert,Bernd W. Böttiger,Robert Greif,Carsten Lott,J. Madar,Theresa M. Olasveengen,Charles Christoph Roehr,Federico Semeraro,Jasmeet Soar,P. Van de Voorde,D. Zideman,Gavin D. Perkins +14 more
TL;DR: Treatment should be informed by a dynamic risk assessment which may consider current COVID-19 prevalence, the patient's presentation, likelihood that treatment will be effective, availability of personal protective equipment (PPE) and personal risks for those providing treatment.
Journal ArticleDOI
Numerical modeling of the distribution of virus carrying saliva droplets during sneeze and cough
Mohammad Reza Pendar,Jose Pascoa +1 more
TL;DR: In this paper, a fully coupled Eulerian-Lagrangian method has been applied for infection control, thus leading to a deeper understanding of the saliva-disease-carrier droplet transmission mechanisms and also of their trajectory tracking by using the OpenFOAM package.
Journal ArticleDOI
Spreading of COVID-19: Density matters.
David Wong,Yun Li +1 more
TL;DR: It is shown that population density is an effective predictor of cumulative infection cases in the U.S. at the county level, and population density and sizes of vulnerable population subgroups should be explicitly included in transmission models that predict the impacts of COVID-19, particularly at the sub-county level.
Journal ArticleDOI
Speech can produce jet-like transport relevant to asymptomatic spreading of virus
TL;DR: This paper analyzed the spatiotemporal structure of the expelled airflow and highlighted three distinct temporal scaling laws for the transport distance of exhaled material including 1) transport over a short distance (<0.5 m) in a fraction of a second, with large angular variations due to the complexity of speech; 2) a longer distance, ∼1 m, where directed transport is driven by individual vortical puffs corresponding to plosive sounds; and 3) a distance out to about 2 m, or even farther, where sequential plosives in a sentence, corresponding effectively to
Journal ArticleDOI
Likelihood of survival of coronavirus in a respiratory droplet deposited on a solid surface
Rajneesh Bhardwaj,Amit Agrawal +1 more
TL;DR: The relationship between the drying time of a droplet and the growth rate of the spread of COVID-19 in five different cities is explored and it is found that they are weakly correlated.
References
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