Research on aerodynamic and flow field characteristics of high speed elevator with different shaft blockage ratio

Abstract

Abstract With the increase of building height, more and more high-speed elevators are applied to high-rise buildings in order to improve the transportation efficiency of people in buildings. Compared with the medium and low speed elevators, the airflow in the shaft is more severe when the high-speed elevator car is running in the narrow and long shaft, and the influence of aerodynamic force and aerodynamic noise is more obvious. In order to explore the aerodynamic characteristics of the high-speed movement of the elevator car and the airflow law in the shaft, and further optimize the aerodynamic parameters of the high-speed elevator shaft system, a full-scale three-dimensional model of the shaft with different blocking ratio is established and numerically simulated. Through the analysis of the calculation results of different blockage ratio of the shaft model, it is found that the greater the blockage ratio is, the greater the resistance of the car operation is, and the airflow disturbance behind the car movement is more severe than that in the front. The calculation results provide a reference for further exploring the airflow flow law in the high-speed elevator shaft.