Does the rear wing of the car have any effect on driving?

Simply as airfoils, they all have a role, but they need enough speed, and enough surface area to do that. The rear wing of Formula 1 is designed to exert downward pressure on the car, so that the tires increase friction, because at the speed at which Formula 1 is running, the air creates a lot of turbulence that makes the car difficult to control"Float up"So, in order to increase the grip of the car, Formula 1 actually added two wings: the front wing and the rear wing.

The air enters from a reasonable chamfer in the front, passes through the body, and then generates downward pressure in the rear wing, and only the synergy of these two forces can crush the car to death, otherwise, the front of the car will be warped. So how exactly do these wings work? Tear it apart and say a little:

The Bo Equation does not apply to tail (or wing) aerodynamics. --Not so much inapplicable, but more precisely because of its simplification, it must be used with caution. In the case of a large number of vortices in a fluid, the potential flow theory does not apply, and Bernoulli's principle does not apply, as Yi Chen said"The boundary layers are not separated, and the rest of the lift is generated entirely by the principle of Bo effort.

Exactly, as in the case of the first angle in fig 8. But it doesn't conflict with the understanding of the vortex angle, you can either explain the problem in terms of the external potential flow, or you can find the body force in terms of the area of the vorticity flux, but which one is more accurate? I certainly think that it is the swirling flow of the vortex, not the potential flow of the non-sticky vortex.

For the boundary layer effect, a very heuristic idea is that if you measure velocity on the surface of the wing, the velocity should be equal to the speed of the wing, but if you measure the velocity at a small delta away from the surface of the wing, the velocity is equal to the velocity of the air, and a thin shear motion layer is formed in a small distance (I don't know what the Chinese are). In the meantime, the most convenient form of passage for air molecules is rotation.

One roll drives the surrounding rolling, and it creates a lot of small vortices. (turbulence) <>

At small inclination angles, the boundary layer is not strong, and there is no support. (Yi Chen: "There's a problem with this sentence, the last diagram discusses the effect of turbulence on separation, where the airfoil is a symmetrical airfoil, and the boundary layer is completely attached when there is no angle of attack, but the shape determines that there is no ring and no lift" - partially agreed, but I would like to point out that even this symmetrical airfoil can produce lift at an inclination angle, which you can explain from two angles, but they are equivalent:

a) The potential flow at this time has a lift force caused by pressure difference. b) Vorticity flux and other terms impose a body force along the integral of the surface see :

At this point, it's not hard to imagine that in order to generate enough support or pressure, we need not only a large enough surface area, but also a good angle, and a fast enough running speed. The rear wing (with the front wing) only works at the speed of a racing car, not at all.

One is not fast enough, the second is not big enough, and the third is not the right angle. When the furnishings are still ugly. It still doesn't explain what the essence of critical velocity is.

So I didn't give a reference when I finished talking about the principle, right, so as a reference, civil aircraft are generally between Mach 1 is equal to double the speed of sound. Formula 1 cars reach Mach. I don't think there's any critical velocity here, as long as you have speed, wings, angles, there's going to be a little bit of lift pressure or something, but the key is is that the force is big enough that you can clearly feel the effect of the tail?

So for reference, you need to be driving at double sonic speed, and then have that much front wing and that much rear wing, and be as light as the full carbon fiber of an F1 car. <>

The function of the rear wing of the car is that when the car is driving at high speed, the air resistance is formed by the balance and the return form a downward pressure, which can offset the lift force as much as possible, effectively control the downward pressure of the air flow, reduce the drag coefficient accordingly, and increase the high-speed driving stability of the car.

Because the rear wing can reduce the air resistance of the car, the installation of the rear wing in high-speed cars also helps to save fuel; At the same time, it also makes the curved shape of the car more beautiful and plays a certain decorative role.

The rear wing of the car refers to the protrusion of the ducktail on the trunk lid and the rear end of the car, which is part of the aerodynamic package of the car. The main role is to reduce the lift at the rear of the vehicle.

How it works. When the car is driving at high speed, according to the principle of aerodynamics, air resistance will be encountered during driving, and the aerodynamic force in three directions of longitudinal, lateral and vertical rise will be generated around the center of gravity of the car at the same time, of which the longitudinal is the air resistance.

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 car rear wing, which is to make the air produce the fourth force on the car, that is, to produce a larger adhesion to the ground, it can offset a part of the lift, effectively control the car to float, so that the drag coefficient is reduced accordingly, so that the car can be close to the road ground driving, so as to improve the stability of driving.

The function of the rear wing of the car is to reduce the lift of the rear of the car, that is, to produce greater adhesion to the ground, which can offset part of the lift, effectively control the floating of the car, and reduce the drag coefficient accordingly, so that the car can drive close to the road, thereby improving driving stability. Tail type 1FRP tail:

This tail fin comes in a variety of shapes, ranging from a duck tongue shape

The function of the rear wing of the car is to reduce the lift of the rear of the car, that is, to produce greater adhesion to the ground, which can offset part of the lift, effectively control the floating of the car, and reduce the drag coefficient accordingly, so that the car can drive close to the road, thereby improving driving stability.

Tail type. 1.FRP tail: This kind of tail has a variety of shapes, including duck tongue shape, wing shape, straight plate shape, which is relatively easy to form, but the FRP material is relatively brittle, the toughness and rigidity are not large, and it is also relatively cheap.

2.Aluminum alloy tail wing: This kind of tail has a good diversion and heat dissipation effect, ** moderate, but the weight is slightly heavier than that of other material rear wings.

3.Carbon Fiber Rear Wing: The carbon fiber rear wing has excellent rigidity and durability. Not only is it lightweight, but it is also the most beautiful rear wing. Now widely used in F1 cars, but **expensive.

According to the authoritative definition of CAR2100, the professional name of the rear of the car is "car spoiler". Professionally known as a spoiler, it is part of the car's air aerodynamics kit. The main role of the rear wing is to reduce the lift at the rear of the vehicle.

If the lift at the rear of the vehicle is greater than at the front of the vehicle, it can easily lead to oversteer, reduced grip of the rear wheels, and poor stability at high speeds.

What are the classifications of car tails.

According to different materials, car rear wings can be divided into three types: fiberglass rear wing, aluminum alloy rear wing and carbon fiber rear wing. A car rear wing refers to a ducktail-like protrusion on the trunk lid of a car, which is the part of the car's aerodynamic packaging empty. The main function is to reduce the lift at the rear of the vehicle.

The function of the rear of the car is to make the air resistance form downward pressure when the car is driving at high speed, try to offset the lift, effectively control the downward pressure of the airflow, reduce the drag coefficient accordingly, and increase the stability of the car at high speed; Because the rear wing can reduce the car's air resistance, installing the rear wing can also help to save fuel for high-speed vehicles. At the same time, it also makes the appearance of the car more beautiful and plays a certain decorative role.

Car Tail Class:

1.FRP tail: This kind of tail has a variety of shapes, including duck tongues, wings, straight plates, etc. It is relatively easy to form, but the FRP material is brittle, poor toughness and rigidity, and relatively cheap.

2.Aluminum alloy tail wing: This kind of tail has a good diversion and heat dissipation effect, ** moderate, but the weight is slightly heavier than that of other material rear wings.

3.Carbon Fiber Rear Wing: The carbon fiber rear wing has excellent rigidity and durability.

Not only is it lightweight, but it is also the most beautiful rear wing. Now widely used in F1 cars, but **expensive. The role of the car rear wing is not big What are the classifications of car rear wings @2019

The role of the imitation tail wing of the automobile shirt reduces the lift of the tail of the vehicle, that is, produces a larger adhesion to the ground, can offset a part of the lift, effectively control the floating of the car, and reduce the wind resistance collapse coefficient accordingly, so that the car can drive closely on the road ground, so as to improve the stability of driving. Types of tail 1, FRP tail wing: This kind of tail wing has a variety of shapes, including duck tongue shape, wing shape, and straight plate type, which is easier to shape, but the FRP material is relatively brittle, and the toughness and rigidity are not large, and it is relatively cheap.

2. Aluminum alloy tail wing: This kind of tail has good diversion and heat dissipation effect, and it is moderate, but the weight is slightly heavier than that of other materials.

3. Carbon fiber tail: The rigidity and durability of the carbon fiber tail are very good, not only light weight but also the most beautiful kind of tail, which is now widely used by F1 cars, but it is more expensive.

According to the authoritative definition of CAR2100, the professional name of the rear wing of a car is "car spoiler". Technically known as a spoiler, it is part of the car's aerodynamic package. The main function of the rear wing is to reduce the lift at the rear of the vehicle, if the lift at the rear is greater than the lift at the front of the vehicle, it is easy to cause the vehicle to oversteer, reduce the grip of the rear wheels, and deteriorate stability at high speeds.

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