2. In order to effectively reduce and overcome the influence of air resistance when the car is driving at high speed, people design and use the tail wing of the car. The function of the tail wing is to make the air produce the fourth force on the car, that is, to produce greater adhesion to the ground;
3. It can offset part of the lift, effectively control the floating of the car, correspondingly reduce the drag coefficient, and make the car run close to the road, thus improving the driving stability.
Automobile tail wing refers to the duck tail protrusion installed on the trunk lid and the rear end of the automobile, which belongs to a part of the automobile aerodynamic suite. The main function is to reduce the lift at the rear of the vehicle. Some people abroad call it "sled board" according to its shape. Some people in China also call it "duck tail" or "fixed wing", and the more scientific name should be "spoiler", "spoiler wing" or "spoiler". The empennage is generally divided into single-layer and double-layer materials, including aluminum alloy empennage and carbon fiber, and also divided into manual adjustment and hydraulic automatic adjustment. Among them, there are many hydraulic columns with automatic hydraulic adjustment, which can automatically adjust the angle according to the vehicle speed.
That is, when the car is driving at high speed, the air resistance forms downward pressure, which counteracts the lift as much as possible, effectively controls the pressure under the airflow, correspondingly reduces the drag coefficient and increases the stability of the car driving at high speed; Because the tail wing can reduce the air resistance of the car, it is also helpful to save fuel by adding the tail wing to the car driving at high speed. At the same time, it also makes the appearance of the car more beautiful and plays a certain decorative role.