Since around January 2020, the new coronavirus has been raging worldwide. Airborne infection is one of the infection routes of this new coronavirus. Airborne infection is an infection method in which another person inhales the virus (droplet nucleus) released into the air by drying the brim and runny nose that the infected person has blown by sneezing or coughing. Since droplet nuclei diffuse in a windy space, airborne infections are mainly caused by the droplet nuclei staying in a closed room without wind. Therefore, regular ventilation is important to prevent airborne infections. In this study, we created a model of the 321 lecture room on the 2nd floor of the College of Industrial Technology Building No. 3, and performed a fluid simulation inside the model to search for an efficient ventilation method. As a result, it was found that the ventilation efficiency would be improved if one large air vortex was created in the center of the room. We also found that in order to create one large air vortex in the center of the room, the entire air flow should be created by opening the central window.
09_産業技術短期大学の講義室の換気シミュレーション |第1報 321講義室の室内流れ|
