Abstract: The aerodynamic package provides reliable downforce for formula racing while also playing a role in tidying up turbulence. This article analyzes the design of the aerodynamic package based on computational fluid dynamics. The finite element method is used to calculate the impact of flaps at different angles of attack, analyze the benefits of different grid models, and optimize the design of the aerodynamic package for formula racing vehicles. It is found that using the Poly-Hexcore grid model has the lowest computational time and the best benefits for some airfoils. The causes of tail vortex generation are analyzed and dealt with by arranging tail gaps. This article aims to design the aerodynamic package for formula racing with the goal of high aerodynamic performance and illustrates the optimization process, providing a theoretical basis for the design of the vehicle's empty jacket.

Key words: Formula student China; Downforce; Aerodynamic package; Simulation analysis

摘要： 空气动力学套件为方程式赛车行驶中提供可靠下压力的同时起到整理乱流作用，文章 基于计算流体力学对空气动力学套件进行设计分析。利用有限元的方法计算襟翼不同攻角时 产生的影响、分析不同网格模型所带来的效益及对方程式赛车整车空气动力学套件优化设计。 发现对于部分翼型而言使用 Poly-Hexcore 网格模型计算时长最低、所带来的效益最佳。分析 得出尾翼气流涡产生的原因并通过布置尾翼缺口进行处理。文章以高气动性能为目标对方程 式赛车空气动力学套件进行设计并阐明优化流程，为整车空套设计提供理论基础。

关键词: 中国大学生方程式系列赛事；下压力；空气动力学套件；仿真分析