Numerical model for cough-generated droplet dispersion on moving escalator with multiple passengers.

ABSTRACT: To investigate the motion of virus-laden droplets between moving passengers in line, we performed numerical simulations of the distribution of airborne droplets within a geometrically detailed model similar to an actual escalator. The left and right sides and the ceiling of the escalator model were surrounded by walls, assuming a subway used by many people every day with concern to virus-laden droplets. Steps and handrails were incorporated in the model to faithfully compute the escalator-specific flow field. The ascending and descending movements of the escalator were performed with 10 or 5 passengers standing at different boarding intervals. To resolve the unsteady airflow that is excited by a moving boundary consisting of passengers, steps, and handrails, the moving computational domain

SUBMITTER: Takii A 

PROVIDER: S-EPMC9827918 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature