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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Transition to the viscoelastic regime in the thinning of polymer solutions.
TL;DR: In this article , the authors investigate the transition between the Newtonian and the viscoelastic regimes during the pinch-off of droplets of dilute polymer solutions and discuss its link to the coil-stretch transition.
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Unanswered questions on the airborne transmission of COVID-19
Zhaolin Gu,Jie Han,Liyuan Zhang,Hongliang Wang,Xilian Luo,Xiangzhao Meng,Yue Sheng Zhang,Xinyi Niu,Yang Lan,Shaowei Wu,Junji Cao,Eric Lichtfouse +11 more
TL;DR: In this article , the effects of atmospheric particulate properties, vortex zones, and air pollution on virus survivability and transmission were examined, and it was found that particle size, chemical constituents, electrostatic charges, and moisture content of airborne particles can have notable effects on virus transmission, with higher survival generally associated with larger particles, yet some viruses are better preserved on small particles.
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Physics of droplet impact on flexible materials: A review
TL;DR: In this article , a review of the physics of droplet impact on soft materials with different physical and interfacial characteristics is presented, and future research directions related to current problems in such complex physical phenomenon are laid out.
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Numerical study of when and who will get infected by coronavirus in passenger car
TL;DR: In this article , a 3D computational fluid dynamics (CFD)-based investigation of indoor airflow and the associated aerosol transport in a passenger car was conducted, where the Eulerian-Eulerian flow model coupled with k-ε turbulence approach was used to track respiratory contaminants with diameter ≥ 1 μm that were released by different passengers within the passenger car.
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Analysis of overdispersion in airborne transmission of COVID-19
TL;DR: In this paper , the authors conducted mechanistic modeling of SARS-CoV-2 point-source transmission by infectious aerosols using real-world occupancy data from more than 100 000 social contact settings in ten US metropolises.
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