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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Journal ArticleDOI
Computational study on the transmission of the SARS-CoV-2 virus through aerosol in an elevator cabin: Effect of the ventilation system.
TL;DR: In this article, the authors investigated factors influencing the transport of virus-laden particles in an elevator cabin, including human respiratory events, locations of the infected person(s), and the ventilation system (ventilation mode, ventilation capacity, and vent schemes).
Penetration and secondary atomization of droplets impacted on wet facemasks
TL;DR: In this paper, the dynamics of sequential impacts of droplets on masks were investigated to understand how wetness affects possible penetration and secondary atomization of the impacted droplet. And two different types of masks, hydrophobic and hydrophilic, were used to evaluate the underlying physical mechanism that controls the penetration in each of them.
Posted ContentDOI
Computational fluid dynamic (CFD), air flow-droplet dispersion, and indoor CO2 analysis for healthy public space configuration to comply with COVID 19 protocol
TL;DR: The result confirms that by modifying public space configuration by providing more space and increasing seating distance can reduce the vulnerability towards droplet dispersions, and providing shield including adding protection is far more effective in avoiding dispersions.
Posted ContentDOI
COVID-19: Effects of environmental conditions on the propagation of respiratory droplets
TL;DR: The results of this study suggest that the current pandemic may not ebb in the summer of the northern hemisphere without proper intervention, as there is an increasing chance of aerosol transmission.
Journal ArticleDOI
Variability in expiratory trajectory angles during consonant production by one human subject and from a physical mouth model: Application to respiratory droplet emission.
Tanvir Ahmed,Hannah E. Wendling,Amir A. Mofakham,Goodarz Ahmadi,Brian T. Helenbrook,Andrea R. Ferro,Deborah M. Brown,Byron D. Erath +7 more
TL;DR: The authors showed that the expiratory flow field produced by consonant productions is highly unsteady, exhibiting extremely broad inter-and intra-consonant variability, with mean ejection angles varying from ≈+30° to -30°.
References
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Journal ArticleDOI
Aerosol and Surface Stability of SARS-CoV-2 as Compared with SARS-CoV-1.
Neeltje van Doremalen,Trenton Bushmaker,Dylan H. Morris,Myndi G. Holbrook,Amandine Gamble,Brandi N. Williamson,Azaibi Tamin,Jennifer L Harcourt,Natalie J. Thornburg,Susan I. Gerber,James O. Lloyd-Smith,Emmie de Wit,Vincent J. Munster +12 more
TL;DR: Aerosol and Surface Stability of SARS-CoV-2 In this research letter, investigators report on the stability of Sars-CoVs and the viability of the two virus under experimental conditions.
Book
Aerosol Technology : Properties, Behavior, and Measurement of Airborne Particles
TL;DR: Properties of Gases Uniform Particle Motion Particle size Statistics Straight-Line Acceleration and Curvilinear Particle motion Adhesion of Particles Brownian Motion and Diffusion Thermal and Radiometric Forces Filtration Sampling and Measurement of Concentration Respiratory Deposition Coagulation Condensation and Evaporation Atmospheric Aerosols Electrical Properties Optical Properties Bulk Motion of aerosols Dust Explosions Bioaerosols Microscopic measurement of Particle Size Production of Test aerosols Appendices Index Index
Journal ArticleDOI
SARS-CoV-2 Viral Load in Upper Respiratory Specimens of Infected Patients.
Lirong Zou,Feng Ruan,Mingxing Huang,Lijun Liang,Huitao Huang,Zhongsi Hong,Jianxiang Yu,Min Kang,Yingchao Song,Jinyu Xia,Qianfang Guo,Tie Song,Jianfeng He,Hui-Ling Yen,Malik Peiris,Jie Wu +15 more
TL;DR: Results of an analysis of nasal and throat swabs from 17 patients in Zhuhai, China, who had received a diagnosis of Covid-19 and found SARS-CoV-2 Viral Load in Upper Respiratory Specimens positive.
Journal ArticleDOI
Presumed Asymptomatic Carrier Transmission of COVID-19.
TL;DR: This study describes possible transmission of novel coronavirus disease 2019 (COVID-19) from an asymptomatic Wuhan resident to 5 family members in Anyang, a Chinese city in the neighboring province of Hubei.
Book
Aerosol technology : properties, behavior, and measurement of airborne particles
TL;DR: Aerosol Technology, Second Edition as mentioned in this paper is the #1 guide to aerosol science and technology and has been the text of choice among students and professionals who need to acquire a thorough working knowledge of modern aerosol theory and applications.