论文标题
在咳嗽生成的液体颗粒中包含的冠状病毒（SARS-COV-2）的个人保护下，空气幕的研究
Study of Air Curtain in Context of Individual Protection from Exposure to Coronavirus (SARS-CoV-2) Contained in Cough-Generated Fluid Particles
论文作者
论文摘要
持续的呼吸道199大流行对大多数全球人口的社会和私人生活产生了重大影响。这种感染主要是通过含有病毒的液体颗粒（即液滴和气溶胶）传播的，这些颗粒在感染个体的呼吸道中形成，并在呼吸，说话，咳嗽和打sneee的过程中从口腔中排出。为了减轻病毒传播的风险，在世界许多地方，公众被要求甚至不得不使用面部盖。在未来的几年中，我们将看到面罩，面罩和呼吸器的使用成为我们生活中的正常实践。但是，在某些情况下，穿着的脸部盖子不舒服，例如，在夏季的炎热中，呆在海滩或酒店游泳池，在健身房进行锻炼等，大多数类型的脸部盖都被时间污染，并且需要定期替换或消毒。这些滋扰是由于面部覆盖物基于材料屏障而引起的，从而防止了含有病原体的气溶胶和液滴的向内和向外传播。应用良好的气体流量形式主义，我们研究了一个基于非物质的保护屏障，该防护屏幕是由敞开的面部正面的一流空气流构成的。保护是由在气流宽度内部拖动富含病毒的颗粒的驱动的，因此，将它们置于其主要轨迹上。这项研究表明，这种潜在的便携式空气窗帘可以有效地提供内向和外在的保护，并充当有效的个人保护设备（PPE），从而减轻了人类的人类传播病毒感染（如Covid-19）。
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. Applying well established gas-particle flow formalism, 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. The 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.
