How does drag Reduction system (DRS) function in a Formula 1 car ?

 What does adjusting flaps do?


Adjusting the flap breaks the operation of the main plate of the rear wing and flaps together as a single unit. This improves the speed of the car by 10-15kmph by reducing the downforce (depends on design) and drag ( 5%).

How does it reduce downforce and drag?

As we see in the image, when the flap is deployed, airflow over the wing is broken and separated. This creates a condition of the wake that reduces the effectiveness of the wing, much of the air escapes the gap between the main plate and flap, thereby reducing downforce and consequent drag of the car. As downforce and drag is reduced, the car lightens thereby increasing top speed by 10-15 kmph.

DRS - Formula1

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