Influence of Strong Wind on the Aerodynamic Characteristics of the High-Speed Maglev Train

The increasing demand for high-speed transportation has led to the successive development and building of high-speed maglev transportation systems by Germany, Japan, the United States, and China.Though the design speed of the high-speed maglev train has been increased to 600 km/h, however, the degree of deterioration of their aerodynamic characteristics under strong winds has not been studied because of its high speed and different operation modes compared to wheel rail trains.In this study, the delayed detached eddy simulation method is used to simulate the flow field around the maglev train under strong wind, and the characteristics of flow field around the maglev train and the influence of aerodynamic force on the maglev train under different wind conditions are studied.The results show that with the deterioration of the wind condition, the drag, lift and side force of the head car and tail car of the maglev train change.Furthermore, an increase in strong winds causes the flow field asymmetry and vortex intensity around the train to increase, resulting in further fluctuations of the aerodynamic characteristics of the train.