A numerical simulation shows the transport and deposition of aerosols in a small classroom with an asymptomatic instructor and the ceiling ventilation system located at the rear (top) and front (bottom) of the classroom. (Suo Yang, University of Minnesota)
MINNEAPOLIS (FOX 9) – A new study by researchers at the University of Minnesota School of Science and Engineering shows how the coronavirus moves indoors.
The research team modeled the transmission of COVID-19 through aerosols, which are expelled from the mouth when people speak and breathe. The team modeled flow in three different settings: classrooms, elevators, and the supermarket.
University of Minnesota study looks at how COVID-19 spreads indoors
A new study by researchers at the University of Minnesota School of Science and Engineering shows how the coronavirus moves indoors.
In the classroom, for example, the researchers studied an individual with an asymptomatic infection who taught in front of the room for 50 minutes. They found that only 10 percent of the virus particles were filtered with good ventilation, but found that it mattered where an air vent was placed. When the teacher spoke directly below, the sprays did not spread as far.
The researchers say this could help organize classrooms and companies with fewer “hotspots” or areas where aerosols congregate.
“After our work comes out, I think more people will ask for help because I think a lot of business reopens will have this need: movie theaters, theaters, anywhere with big gatherings,” said assistant professor Suo Yang, one of the study investigators. in a press release “If you do a good job, if you have good ventilation in the right place, and if you scatter audience seats properly, it could be much safer.”
The researchers are also working with the Minnesota Orchestra to see how aerosols travel when instruments are played on stage and hope to complete that study in August.
