The flow physics of COVID-19
Rajat Mittal,Rui Ni,Jung Hee Seo +2 more
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TLDR
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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How human thermal plume influences near-human transport of respiratory droplets and airborne particles: a review.
Shiyi Sun,Jing Li,Jie Han +2 more
TL;DR: In this article, the authors assessed the potential influences of the human thermal plume on the transmission of COVID-19 and other airborne pathogens by reviewing the most pertinent evidence and analyzing key variables in the formation of thermal plumes in indoor environments, e.g., ambient temperature, human posture and type of clothing.
Journal ArticleDOI
How effective is a mask in preventing COVID-19 infection?
TL;DR: In this paper, the authors provided the most up-to-date information on the transmission modes of COVID-19 virus in terms of droplets and aerosols and evaluated the roles of masks in disease prevention and transmission reduction.
Journal ArticleDOI
On secondary atomization and blockage of surrogate cough droplets in single- and multilayer face masks.
TL;DR: In this article, high-momentum, large-sized (>250 micrometer) surrogate cough droplets can penetrate single- or double-layer mask material to a significant extent.
Journal ArticleDOI
Predictive and retrospective modelling of airborne infection risk using monitored carbon dioxide
TL;DR: It is shown that estimates of airborne infection can be accurately reconstructed, thereby offering scope for more informed retrospective modelling should outbreaks occur in spaces where CO2 is monitored, and well-ventilated spaces appear unlikely to contribute significantly to airborne infection.
Journal ArticleDOI
Why airborne transmission hasn’t been conclusive in case of COVID-19? An atmospheric science perspective
Kirpa Ram,Roseline C. Thakur,Dharmendra Kumar Singh,Kimitaka Kawamura,Akito Shimouchi,Yoshika Sekine,Hidekazu Nishimura,Sunit K. Singh,Chandra Mouli Pavuluri,Rajesh Singh,Sachchida Nand Tripathi +10 more
TL;DR: In this article, the authors reviewed existing literature focussed on the transmission of SARS-CoV-2 in the spread of COVID-19 and present an environmental perspective on why airborne transmission hasn't been very conclusive so far.
References
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