基于CFD的FSE赛车空气动力学套件研究

Research of FSE racing Car Aerodynamics Devices Based on CFD

利用CFD技术对FSE电动赛车进行车身外流场的仿真分析,对比加装空气动力学套件前后车身表面的气流情况。在确定空气动力学套件产生下压力的大小和对整车气流的影响后,根据FSC的比赛规则确定适合不同比赛项目的尾翼攻角组合。最后按一定的变化梯度改变尾翼襟翼的攻角,探究赛车气动参数随攻角改变的变化规律,为后续可调尾翼系统的开发提供参考。

Simulation analysis of external flow field of FSE electric car is carried out by using CFD technology for comparison of air flow on the surface of car body before and after installation of aerodynamics devices.After determining the magnitude of the pressure generated by the aerodynamics devices and the impact on the airflow of the whole vehicle,the combination of the tail angle of attack suitable for different competitions is determined according to the rules of FSC.Finally,the angles of the rear wing are changed according to a certain change gradient to explore the change law of the aerodynamic parameters of a racing car with the angle change.It provides a reference for the development of the DRS system.