Numerical simulation on flow characteristics of PM2.5 in the indoor environment

The research of Particulate Matter (PM2.5) in the indoor environment is a significant research area in the indoor environmental technology. Unfortunately, this research area is in its infancy, and literatures relating to the study of the flow characteristics of PM2.5 in the indoor environment are rarely available. This paper aims to analyze the influence of ventilation mouth location, number, and ventilation speed on the flow characteristics of PM2.5 in the indoor environment by conducting CFD numerical simulations. The results show that locating the ventilation mouth in the side wall, increasing the number of the ventilation mouth in the top wall and selecting an appropriate ventilation speed can contribute to decrease the concentration of PM2.5 of the indoor environment. And it could provide guidance for dust removal technology in the indoor environment.