Numerical Simulation on the Effect of Different Airflow Schemes in a Large Space

Abstract The underground plant of a pumped storage power station was taken as the object for studying the airflow in a large space. Computational Fluid Dynamics (CFD) is utilized to analyze the characteristics and patterns of airflow organization under summer operating conditions. Three airflow organization schemes including variable inlet dimension, number and air supply velocity are set. The airflow effects are compared according to the air velocity and air temperature distribution. The longitudinal profile of the air supply as well as the horizontal height of the work area are selected. Results demonstrate that a reasonably designed air outlet layout can fulfill the wind speed and temperature requirements for the working area. Moreover, homogeneity and stability of the airflow field in the working zone can be realized.