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With many people heading indoors for the winter months and respiratory droplets acting as a major contributor to COVID-19 spread, the scientific community has renewed interest in the dynamics behind how they spread. Modeling such behavior in a variety of scenarios for particles that range from less than 1 micrometer in size to 1,000 micrometers proves challenging.
In AIP Advances, Hongping Wang and his team show models driving how respiratory droplets fell from a mannequin inside a water tunnel, which was inclined at different angles to mimic a person going up and down stairs.
"Two different patterns of droplets dispersion are observed due to the different wake flows," said Wang. "These results suggest that we should cough with the head down toward the ground to ensure that most of the droplets enter the wake region."
The group 3D-printed mannequins using white resin, each with a different inclination angle to represent the leaning in that we naturally do when going up stairs and the leaning back when we walk down.
Coughing downward reduces spread of respiratory droplets: study
With many people heading indoors for the winter months and respiratory droplets acting as a major contributor to COVID-19 spread, the scientific community has renewed interest in the dynamics behind how they spread. Modeling such behavior in a variety of scenarios for particles that range from...
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Cough Down Bitches!
