The aero foil, also known as a rear wheel deflector or wheel skirt, is a device installed behind the rear wheels of a vehicle. Its primary purpose is to improve aerodynamic efficiency and reduce drag by managing the airflow around the vehicle. Here are the key purposes of an aero foil:
1. Reduction in Drag:
- The aero foil creates a low-pressure area behind the rear wheels, allowing air to flow more smoothly over the vehicle's surface.
- It helps reduce turbulence caused by the rotating wheels and the disturbed airflow around them. Minimising turbulence results in lower aerodynamic drag.
2. Improved Fuel Efficiency:
- By reducing drag, the aero foil contributes to improved fuel efficiency. Efficient airflow around the vehicle decreases resistance, allowing the car to move forward with reduced energy consumption.
3. Enhanced Stability:
- The aero foil helps control and stabilise the vehicle's handling characteristics, particularly at higher speeds. It prevents excessive air from flowing under the car, which could cause lift and instability.
4. Reduced Dirt and Spray:
- The aero foil can redirect water, mud, and debris thrown up by the rear wheels. This reduces the amount of dirt and spray reaching the vehicle's rear windows and improves visibility during wet weather conditions.
5. Aesthetic Appeal:
- In addition to its functional benefits, the aero foil can add a sporty or customised appearance to a vehicle. It enhances the vehicle's overall aesthetics.
6. Integration with Underbody Aero:
- The aero foil can be integrated into the vehicle's underbody aerodynamics, working in conjunction with other features like front air dams and rear diffusers. This comprehensive approach optimises airflow throughout the vehicle.
It's worth noting that the effectiveness of an aero foil can depend on various factors such as vehicle design, speed, and specific driving conditions.
