About the aerodynamic kit on the bottom of the car...

Mechanical classification: low-speed aerodynamics.

Flow Type: Incompressible Flow.

Air velocity: less than 400km h

What was studied: Downforce and resistance.

Research Methods: Model testing.

In F1, the core purpose of aerodynamic research is to have the least air resistance while ensuring that the car receives enough downforce to improve the speed of the car and the stability of high-speed driving, and all the components that serve aerodynamics are called aerodynamic kits.

It's not just the engine that's the most powerful thing about an F1 car! And his aerodynamic kit! And our Lapierre's aerodynamic models are among the best in the world.

1 Alar nose: Provides front downforce, which accounts for about 20% of all downforce. At the same time, the airflow is directed to the rear of the car in an orderly manner.

In addition, the choice of the angle of attack of the fins is very important, as the body will roll forward during braking, and the resulting change in the angle of attack of the front wings will increase the downforce by at least 10% (the sharp increase in the grip of the front wheels due to the forward shift of the center of gravity is not taken into account here).

2 Brake heat dissipation duct: cool the brake pads and at the same time reasonably discharge the exported airflow to the rear.

3 Rear wing: Provides rear downforce, accounting for approximately 20-25% of total downforce. Due to the extreme acceleration of the Formula 1 car when braking, the center of gravity is very serious.

Therefore, in such a situation, if the rear wing design is not optimised enough, the rear wheels will almost completely lose their grip, resulting in the rear wheels locking up. Therefore, the design of the rear wing also has a great impact on the balance of the vehicle when braking.

4 Diffuser: In fact, this is used in conjunction with the body, the diffuser quickly draws the airflow under the car, and the body slows down the airflow on the surface as much as possible. This results in a velocity difference between the upper and lower surfaces, resulting in up to 60% of the total vehicle downforce.

5 Sleepers: The chassis of an F1 car is very flat, and its height gradually decreases as the speed of the car increases, and the downforce increases. If, at some point, the downforce is high enough to cause the entire chassis to touch the ground, a significant part of the velocity difference between the upper and lower surfaces is lost.

And if the car is cornering at this point, if the downforce is lost, it poses a big safety risk (this is one of the reasons for the accident that led to the death of the Brazilian god Senna). Therefore, the sleepers are added to prevent the racing chassis from mopping the floor.

Above we have only given a general introduction to each part. Another important point is the compromise on the balance between the left and right sides of the body axis.

The center of gravity shifts along the axis of the car when cornering, resulting in a lack of grip on one side of the wheel. In order to avoid this, the designers were eager to forget that the shift in the center of mass had very little effect on the pressure on the wheels. This requires that the air downforce is much greater than the gravity of the body, but there is also a drawback that the increased air downforce leads to an increase in friction, which reduces the speed of the car.

So there has to be an optimal balance between the two.

My level is limited, and I can only think of these most basic introductions about empty sets. In addition, since the rules change every year, some of the empty sets are not introduced one by one.

Front and rear fixed wings, which control the balance of the car, regulate the downforce of the car, the air intake provides downforce, and the chassis spoiler.

The spoilers and spoilers used in WRC's racing cars are mostly made of carbon, which is extremely lightweight, and almost all racing cars are trying to reduce weight, and no racing car will increase weight.

I don't know what you learned from **, you are wrong about spoilers and spoilers.

Spoilers and spoilers do not have to reach a certain speed to function, but when the speed is relatively low, the increased downforce will be less, and WRC cars, usually on the straights are above 200km/h, even in the first gear, the speed is rarely lower than 60km

So, spoilers and spoilers, from the very beginning of the race, worked almost all the time.

Usually the WRC section is bumpy, and the spoiler and spoiler will often bounce up, which is to increase downforce and reduce the height of the vehicle, because the vehicle is uncontrolled when the vehicle is flying.

It is useful to modify the air bag, but the air bag can only work at high speed, and the air bag cannot work at low speed.

There are many aerodynamic kits, such as rear wings, side skirts, front shovels, and so on.

Different models have different air-aerodynamic kits.

If a rider wants to install an empty aerodynamic kit, they can buy one and go to a professional retrofit factory to install it.

Most riders modify an empty aerodynamic pack for aesthetic reasons, as some bikes look very handsome with an empty aerodynamic pack.

If riders want to increase the face value of their car, they can also opt for the Empty Aerodynamic Package.

There are also some motorists who will install a wide body on their car, and it is also handsome after installing a wide body.

Aerodynamic kits and widebodies were previously used in racing cars, but later slowly in civilian cars.

In fact, there are many aerodynamic designs on automobiles, and automobiles need to undergo various aerodynamic tests before manufacturing. Defeat.

Some sports cars are more focused on dry and empty aerodynamics.

At high speeds, if a car's aerodynamic design is excellent, it can improve the stability of high-speed driving, and it can also improve the turning speed.

If the aerodynamics of a car are not well designed, the stability at high speeds is poor.