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
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How do the finite-size particles modify the drag in Taylor–Couette turbulent flow
TL;DR: In this paper , the authors investigated the effect of particles with various aspect ratios in a Taylor-Couette (TC) turbulent flow and found that particles with three kinds of aspect ratios (oblate, spherical and polygonal) increased the drag of the system regardless of their aspect ratios.
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Variations in human saliva viscoelasticity affect aerosolization propensity.
TL;DR: In this paper , the authors investigated the effect of viscoelasticity via shear and extensional rheology experiments, concluding that the extensional relaxation time is the most adequate measure of a saliva's elasticity.
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Response to the Comment on "Personal Protective Equipment and COVID-19 - A Review for Surgeons".
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Transport and evaporation of virus-containing droplets exhaled by men and women in typical cough events
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