Formula 1 to bring back groundeffect cars for 2021 F1 and Coffee

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December 21, 2021. Ground effect aerodynamics will return to Formula 1 in a big way in the 2022 season, hopefully washing away the bad taste left in fan's mouths after the recent controversial.

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Definition The phrase "Ground Effect" has a specific meaning for a car designers. With some assist from the car enthusiasts at East Hills Jeep of East Hills of Greenvale, NY, we can tell you this: Ground Effects refers to a phenomena of aerodynamics where the flow of air around an aircraft or a car is influenced by the ground underneath.

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Ground effect is a term applied to a series of aerodynamic effects used in car design, which has been exploited to create downforce, particularly in racing cars. This has been the successor to the earlier dominant aerodynamic theory of streamlining. IndyCars employ ground effect to some extent, but Formula One and most other racing.

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Ground effect consists of reducing the space between the floor of an F1 car and the asphalt to create a low-pressure area under the car, thus increasing the speed with which the air circulates and creating a greater downforce, even higher than that generated by the wings.

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In car design, ground effect is a series of effects which have been exploited in automotive aerodynamics to create downforce, particularly in racing cars. This has been the successor to the earlier dominant aerodynamic focus on streamlining.

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The principle behind a wing is simple: as air rushes over them, the angle of the wing causes the car to be pushed further into the ground surface, which would allow the tires to retain grip at higher speeds.

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ground effects on a scaled F1 car by t esting the down force and drag force with and without . ground effects. To meet the objectives, an 8.8 feet-long (2.93 m) wind tunnel was built by the .

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while , where is the density of air (which is constant when air is incompressible), U is the velocity of the air, and S is the cross sectional area of the duct. The contracted volume (where ) between the car and the ground will cause the air to accelerate; .

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Optimising ground effect and making it work for you is all about creating an underfloor profile that expands the airflow as it goes rearward, commonly called a venturi. This will generate low pressure underneath the car as the airflow speeds up to accommodate that expansion.

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1 My understanding is that ground effect works when the ground or other surface interrupts the downdraft thereby reducing aerodynamic drag. With cars, it seems that the explanations I've found describe using the car's body itself as a wing and creating a venturi between the bottom surface of the car and the track.

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If the iconic Lotus 78 was the car that introduced ground effects to Formula 1, then its spiritual successor, the 79, was the car that optimized its use. Data released many years later revealed that what made the 79's ground effects so effective was that it created 200 pounds of downforce from its rear wings, coupled with 100 pounds from the front wings when the vehicle was travelling at 150.


There are three main ground effects. They restrict under car airflow and better direct air around your vehicle to increase aerodynamics and stability. Side Skirts - This contoured addition adds flare as it directs airflow around your vehicle.

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25 New regs are changing that, with Formula 1 shifting to a ground-effect inspired design for 2022, while Peugeot is returning to top-flight competition at Le Mans without a rear wing on its 9X8 racer. It's a radical design that could upend how teams approach the iconic endurance race.

F1 Firsts Ground effect aerodynamics

Ground Effects in F1 can be simply explained as the use of low pressure underneath a car to help push it down onto the track. This technology was first used in F1 racing between 1978 and 1982 and made its unexpected return in 2022. This concept is based on Bernoulli's principle and the Venturi effect.

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The Lotus 78 for 1977 was, with this, a fine machine, taking five wins. Mario Andretti likely would have won the title but for non-finishes. But with the Lotus 79 for 1978, as Denis Jenkinson explained, "whereas the Lotus 78 could come under the category of a 'wing car'; the Lotus 79 is more a 'ground effects' car".

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Ground effect, a revolutionary aerodynamic concept, involves manipulating the airflow underneath a Formula 1 car to generate downforce. This downforce, which presses the car onto the track, enhances traction, stability, and overall performance, especially during high-speed cornering.