Numerical study on the effect of diner divider on the airborne transmission of diseases in canteens

Tempo-spatial infection risk assessment of airborne virus via CO2 concentration field monitoring in built environment

“…Further, by integrating the Wells-Riley model with Computational Fluid Dynamics (CFD) simulation, the spatial distribution of viral aerosol in buildings [ 19 , 20 ] and infection risks can be predicted or retrospected [ 13 , 21 , 22 ]. The air flow and therefore viral aerosols movement can be simulated precisely with accurate boundary condition settings.…”

“…The inter-cube spread trend of SARS was predicted and well-validated with observed data. Following that, Liu [ 19 ] applied the Wells-Riley model combined CFD simulation to investigate the effect of diner dividers on preventing airborne transmission of SARS-CoV-2. The concept of normalized aerosol (used as tracer gas) concentration was brought forward to represent the concentration distribution of infectious particles in space.…”

Quantifying the effectiveness of desk dividers in reducing droplet and airborne virus transmission

“…The desk divider effectively protected and reduced the inhaled dose of the exposed person. A recent study 11 simulated the steady‐state aerosol transmission in canteens with cross‐divider installed dining tables. The dividers showed limited effects on blocking the path of long‐distance aerosol transmission, which gathered the aerosols in the breathing zone inside the partitioned space and left the next diner with certain infection risk.…”

“…16 Most of the existing studies of physical dividers are on hospital curtains, 13,14,16,17 and some adopted full-height curtains, 13,17 to separate the patients lying on the bed, while very limited studies focused on the performance of desk dividers. 10,11 The majority of these studies focused on aerosol transmission only [11][12][13]17 or analyzed with CFD simulations. 10,11,13,15,17 Since the dividers show the potential to reduce the infection risks, and their impacts are sensitive to the relative locations to the source, 14,15 the objectives of this experimental study are to:…”

“…The desk divider effectively protected and reduced the inhaled dose of the exposed person. A recent study 11 simulated the steady-state aerosol transmission in canteens with cross-divider installed dining tables.…”