Numerical Simulation Analysis of Ventilation Network in Subway

According to the characteristics of the train running in the subway generates airflow, the ventilation network theory is used and the airflow is rationally simplified. For the complicated subway network system, air flow phenomenon and the numerical computing method about airflow in subway are developed, the tree chart theory is used to form the independent loop, and the Kirchhoff law in circuit theory is used to calculate the wind amount and wind drag. By combining the numerical computing program demonstrated in this paper and the design of underground environmental control functioning some light track railway, the speed field and temperature field of the subway system are studied. Reliable suggestion is provided by comparing different environmental control plans.