As France attempts to contain the second wave of Covid-19, Ansys believes that wearing a mask in all enclosed spaces is one of the most effective measures to curb transmission of the virus.
Using Ansys numerical simulation, researchers Yu Feng and Jianan Zhao, from Oklahoma State University, modeled the spread of saliva droplets when a person sitting in an amphitheater coughs. The results show that, in the absence of a mask, the largest droplets are projected into the four rows of seats opposite. Smaller, more volatile particles can travel even further and spread throughout the room, risking infecting other individuals despite respect for social distancing.
" These experiences in silico using Ansys software, have enabled us to assess and quantify the propagation of saliva particles when coughing with and without a mask. Our expertise in calculating fluid and aerosol dynamics in the lungs helps us to better understand exposure to Covid-19-laden droplets in the air, and to improve advice and measures aimed at reducing the risk of infection."says Yu Feng, assistant professor of chemical engineering at Oklahoma State University.
"Simulation is an effective solution for visualizing airflow and the spread of tiny droplets expectorated by a contaminated person coughing or breathing hard. The technology enables us to identify where particles can settle in order to minimize the risk of contamination.adds Thierry Marchal, General Manager of Healthcare at Ansys. In this respect, the work of Dr Feng and Jianan Zhao is of paramount importance and proves that wearing a mask is an essential tool for limiting the circulation of the virus."
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