Natural ventilation application in design of Yujiapu underground transportation hub

 In view of the characteristics of Yujiapu underground transportation hub, simulates and analyses the feasibility of natural ventilation in semi-underground space during transition season by CFD. The results show that reasonable natural ventilation in transition season can effectively reject the heat inside the semi-underground station room, ensuring the comfortable environment and reducing the energy consumption of the ventilation and air conditioning system. Reasonable arrangement of skylights, entrances and exits has a significant effect on natural ventilation and heat removal. In the transition season, setting entrances and exits on the dominant wind direction is conducive to the utilization of wind pressure, and the top skylight is conducive to the utilization of heat pressure and has the most significant effect on natural ventilation.