A study of the dispersion of expiratory aerosols in unidirectional downward and ceililng-return type airflows using a multiphase approach

In this paper, numerical simulations were performed to investigate the dispersion mechanisms of expiratory aerosols in an enclosure wtih two different types of of ventilation airflow patterns : unidirectional downward and celing return flow. Experimental results with distilled water as working fluid were compared with some of the numerical results : they were performed in a unidirectional downward flow with the geometry identical to the numerical one. A reasonable agreement was shown.