CFD simulation of a novel ventilation system of subway station in Harbin

According to the cold climate in winter, a new novel ventilation system was put forward based on the analysis of the heat distribution at the subway station in Harbin. There was no special heating system in winter for subway station with such a ventilation system. In this paper, three dimensional model of the subway station was built, a mathematical model of the novel ventilation system was developed based on the k-ε standard turbulence model, and computational fluid dynamics (CFD) simulations for the ventilation system were performed to clarify the conditions of the temperature fields. A scientific analysis was carried out and the simulated results indicated that the temperature of the subway station was acceptable and the novel ventilation system suggested in this paper was a promising way to save energy and protect environment.