Large eddy simulation of droplet transport and deposition in the human respiratory tract to evaluate inhalation risk.

ABSTRACT: As evidenced by the worldwide pandemic, respiratory infectious diseases and their airborne transmission must be studied to safeguard public health. This study focuses on the emission and transport of speech-generated droplets, which can pose risk of infection depending on the loudness of the speech, its duration and the initial angle of exhalation. We have numerically investigated the transport of these droplets into the human respiratory tract by way of a natural breathing cycle in order to predict the infection probability of three strains of SARS-CoV-2 on a person who is listening at a one-meter distance. Numerical methods were used to set the boundary conditions of the speaking and breathing models and large eddy simulation (LES) was used for the unsteady simulation of approximately 10

SUBMITTER: Murga A 

PROVIDER: S-EPMC10027217 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature