Study on Optimization of Ventilation and Virus Transmission in Large Classroom Buildings

In large classroom buildings, people are crowded and the flow field of air is complex. It is important to study the diffusion pattern of aerosol-borne viruses in large classrooms to prevent the spread of infectious diseases and viruses. The distribution and dispersion of aerosol particles with viruses in a classroom were analyzed by numerical simulation using a large classroom in a school. For the structural diversity of classrooms, the effects on particle distribution under two working conditions, natural ventilation and central air conditioning ventilation, were studied separately. The numerical simulation results show that the aerosol particles are effectively suppressed in the central air conditioning air distribution case, and the ventilation pressure of 50 Pa has the best virus aerosol discharge effect.