Next Article in Journal
Self-Inductance of the Circular Coils of the Rectangular Cross-Section with the Radial and Azimuthal Current Densities
Previous Article in Journal
The Effect of Anti-COVID-19 Policies on the Evolution of the Disease: A Complex Network Analysis of the Successful Case of Greece
Open AccessArticle

Study of an Air Curtain in the Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles

1
Physics Department, Manhattan College, 4513 Manhattan College Parkway, Riverdale, NY 10471, USA
2
Experimental Physics Department, CERN, CH-1211 Genève 23, Switzerland
3
P.N. Lebedev Physical Institute of the Russian Academy of Sciences, 53 Leninskiy Prospekt, 119991 Moscow, Russia
*
Author to whom correspondence should be addressed.
Physics 2020, 2(3), 340-351; https://doi.org/10.3390/physics2030018
Received: 20 June 2020 / Revised: 1 July 2020 / Accepted: 2 July 2020 / Published: 6 July 2020
(This article belongs to the Section Applied Physics)
The ongoing respiratory COVID-19 pandemic has heavily impacted the social and private lives of the majority of the global population. This infection is primarily transmitted via virus-laden fluid particles (i.e., droplets and aerosols) that are formed in the respiratory tract of infected individuals and expelled from the mouth in the course of breathing, talking, coughing, and sneezing. To mitigate the risk of virus transmission, in many places of the world, the public has been asked or even obliged to use face covers. It is plausible that in the years ahead we will see the use of face masks, face shields and respirators become a normal practice in our life. However, wearing face covers is uncomfortable in some situations, like, for example, in summer heat, while staying on beaches or at hotel swimming pools, doing exercises in gyms, etc. Also, most types of face cover become contaminated with time and need to be periodically replaced or disinfected. These nuisances are caused by the fact that face covers are based on material barriers, which prevent inward and outward propagation of aerosol and droplets containing the pathogen. Here, we study a non-material based protection barrier created by a flow of well directed down stream of air across the front of the open face. The protection is driven by dragging virus-laden particles inside the width of the air flow and hence, as a consequence, displacing them away from their primary trajectories. Applying well established gas-particle flow formalism, we analyzed the dynamics of aerosols and droplets at different regimes of the flow laying over the bodies of the fluid particles. The analysis allowed us to establish the rates of velocity gain of the fluid particles of dimensions relevant for the pathogen transmissions, while they are crossing the width of the air barrier. On the basis of this analysis, we provide a comprehensive study of the protection effectiveness of the air barrier for a susceptible individual located indoor, in an infected environment. Our study shows that such, potentially portable, air curtains can effectively provide both inward and outward protection and serve as an effective personal protective equipment (PPE) mitigating human to human transmission of virus infection like COVID-19. View Full-Text
Keywords: COVID-19; SARS-CoV-2; virus transmission; aerosol; droplets; nano-particles transport; personal protective equipment (PPE) COVID-19; SARS-CoV-2; virus transmission; aerosol; droplets; nano-particles transport; personal protective equipment (PPE)
Show Figures

Figure 1

MDPI and ACS Style

Sakharov, A.S.; Zhukov, K. Study of an Air Curtain in the Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles. Physics 2020, 2, 340-351. https://doi.org/10.3390/physics2030018

AMA Style

Sakharov AS, Zhukov K. Study of an Air Curtain in the Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles. Physics. 2020; 2(3):340-351. https://doi.org/10.3390/physics2030018

Chicago/Turabian Style

Sakharov, Alexander S.; Zhukov, Konstantin. 2020. "Study of an Air Curtain in the Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles" Physics 2, no. 3: 340-351. https://doi.org/10.3390/physics2030018

Find Other Styles

Article Access Map by Country/Region

1
Back to TopTop