Abstract
Natural ventilation has an important impact on people's work and life. Reasonable use of natural ventilation can effectively improve indoor air quality and thermal comfort, reduce the use of air conditioning and reduce energy consumption. With the continuous development of urbanization, many apartments cannot effectively use natural ventilation. This paper uses CFD simulation to analyze the improvement effect of indoor ventilation after the installation of airflow channel in residential public transportation. The results show that the horizontal airflow channel can improve the indoor air environment and effectively reduce the dissatisfaction rate of indoor thermal comfort and indoor air age.