What is the principle of a racing car spoiler?

[StJanelle]

Its main function is to effectively reduce air resistance and save fuel during high-speed driving. Here are the relevant introductions: 1. Upper spoiler: The upper spoiler consists of two parts, the horizontal wing is the main wing, and the inclined wing with an angle of attack is the auxiliary wing. For most tracks, the team will adjust the angle of attack of the auxiliary wing as large as possible. On high-speed tracks, the angle of attack will be appropriately reduced. 2. Louver structure: There are gaps with a louver structure on the end plates of the spoiler. The spoiler will generate a lot of resistance during operation, and these parallel gaps are used to reduce the resistance of the spoiler.