ArticlePhysics of fluids (Woodbury, N.Y. : 1994)2021
Investigation of theoretical scaling laws using large eddy simulations for airborne spreading of viral contagion from sneezing and coughing.
Article in Physics of fluids (Woodbury, N.Y. : 1994), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- GenAI-Based Digital Twins Aided Data Augmentation Increases Accuracy in Real-Time Cokurtosis-Based Anomaly Detection of Wearable Data.Sensors (Basel, Switzerland) · 2025Article
- Article
- Effect of indoor temperature on the velocity fields and airborne transmission of sneeze droplets: An experimental study and transient CFD modeling.The Science of the total environment · 2023Article
- Mechanisms controlling the transport and evaporation of human exhaled respiratory droplets containing the severe acute respiratory syndrome coronavirus: a review.Environmental chemistry letters · 2023Review
- Analysis of airborne sputum droplets flow dynamic behaviors under different ambient conditions and aerosol size effects.Chemosphere · 2022Article
- The effect of relative air humidity on the evaporation timescales of a human sneeze.AIP advances · 2022Article
- Spread of infectious agents through the air in complex spaces.Interface focus · 2022Article
- High-resolution large-eddy simulation of indoor turbulence and its effect on airborne transmission of respiratory pathogens-Model validation and infection probability analysis.Physics of fluids (Woodbury, N.Y. : 1994) · 2022Article
- Dispersion of free-falling saliva droplets by two-dimensional vortical flows.Theoretical and computational fluid dynamics · 2022Article
- Large eddy simulation of cough jet dynamics, droplet transport, and inhalability over a ten minute exposure.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- Flow dynamics of droplets expelled during sneezing.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- Estimates of the stochasticity of droplet dispersion by a cough.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Article
- Challenges in simulating and modeling the airborne virus transmission: A state-of-the-art review.Physics of fluids (Woodbury, N.Y. : 1994) · 2021Review
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Using a set of large eddy point-particle simulations, we explore the fluid dynamics of an ejected puff resulting from a cough/sneeze. The ejection contains over 61 000 potentially virus-laden droplets at an injection Reynolds number of about 46 000, comparable to an actual cough/sneeze. We observe that global puff properties, such as centroid, puff volume, momentum, and buoyancy vary little across realizations. Other properties, such as maximum extent, shape, and edge velocity of the puff, may exhibit substantial variation. In many realizations, a portion of the puff splits off and advances along a random direction, while keeping airborne droplet nuclei afloat. This peeled-off portion provides a mechanism for virus-laden droplets to travel over large distances in a short amount of time. We also observe that the vast majority of droplets remain suspended within the puff after all liquid has evaporated. The main objectives of the study are to (i) evaluate assumptions of Balachandar's
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