Computational study on the transmission of the SARS-CoV-2 virus through aerosol in an elevator cabin: Effect of the ventilation system [0.03%]
计算研究新型冠状病毒(SARS-CoV-2)在电梯舱内的气溶胶传播：通风系统的影响
N N Peng,K W Chow,C H Liu
N N Peng
Aerosol transmission is now well-established as a route in the spread of the SARS-CoV-2 virus. Factors influencing the transport of virus-laden particles in an elevator cabin are investigated computationally and include human respiratory ev...
Kelby B Kramer,Gerald J Wang
Kelby B Kramer
Amidst the ongoing pandemic, social distancing has been broadly adopted as an effective front-line defense strategy for mitigating disease transmission. Viewed through the lens of particle-based simulations of flow, the practice of social d...
Effect of co-flow on fluid dynamics of a cough jet with implications in spread of COVID-19 [0.03%]
共流对咳嗽射流流体动力学的影响及在COVID-19传播中的应用
Sachidananda Behera,Rajneesh Bhardwaj,Amit Agrawal
Sachidananda Behera
We discuss the temporal evolution of a cough jet of an infected subject in the context of the spread of COVID-19. Computations were carried out using large eddy simulation, and, in particular, the effect of the co-flow (5% and 10% of maximu...
Talib Dbouk,Frederic Roger,Dimitris Drikakis
Talib Dbouk
Air purifiers are limited to small polluting airborne particles and poor air circulation (fan) for bringing airborne particles inside the device. Thus, the optimal utility of domestic air purifiers (DAPs) for eliminating airborne viruses is...
Spread of virus laden aerosols inside a moving sports utility vehicle with open windows: A numerical study [0.03%]
开窗行驶的运动型多功能车内病毒飞沫的传播扩散：一次数值研究
Nirvik Sen,K K Singh
Nirvik Sen
A three dimensional Computational Fluid Dynamics (CFD) model to study the dispersion of virus laden aerosols in a car moving with its windows open is reported. The aerosols are generated when a possibly infected passenger speaks. A sports u...
Water evaporation from solute-containing aerosol droplets: Effects of internal concentration and diffusivity profiles and onset of crust formation [0.03%]
含溶质气溶胶液滴的水分蒸发：内部浓度和扩散率分布的影响及外壳形成的开始
Majid Rezaei,Roland R Netz
Majid Rezaei
The evaporation of droplets is an important process not only in industrial and scientific applications, but also in the airborne transmission of viruses and other infectious agents. We derive analytical and semi-analytical solutions of the ...
Efficacy of homemade face masks against human coughs: Insights on penetration, atomization, and aerosolization of cough droplets [0.03%]
自制面部口罩对人类咳嗽的效果：关于咳嗽液滴穿透、雾化和气溶胶化的见解
Bal Krishan,Dipendra Gupta,Gautham Vadlamudi et al.
Bal Krishan et al.
Ever since the emergence of the ongoing COVID-19 pandemic, the usage of makeshift facemasks is generally advised by policymakers as a possible substitute for commercially available surgical or N95 face masks. Although such endorsements coul...
Fluid dynamics of droplet generation from corneal tear film during non-contact tonometry in the context of pathogen transmission [0.03%]
非接触式眼压计对角膜泪膜产生的液滴的流体动力学在病原体传播中的意义
Durbar Roy,Sophia M,Abdur Rasheed et al.
Durbar Roy et al.
Noninvasive ocular diagnostics demonstrate a propensity for droplet generation and present a potential pathway of distribution for pathogens such as the severe acute respiratory syndrome coronavirus 2. High-speed images of the eye subjected...
Boyang Yu,Jian Chen,Daner Chen et al.
Boyang Yu et al.
Face masks play a critical role in reducing the transmission risk of COVID-19 and other respiratory diseases. Masks made with nanofibers have drawn increasingly more attention because of their higher filtration efficiency, better comfort, a...
Chin Chun Ooi,Ady Suwardi,Zhong Liang Ou Yang et al.
Chin Chun Ooi et al.
The COVID-19 pandemic has led to many countries oscillating between various states of lock-down as they seek to balance keeping the economy and essential services running and minimizing the risk of further transmission. Decisions are made a...