Formula One: Will Ground Effects Be Back in The 2021 Season?

Formula 1 will propose the design of the Ground effects in the 2021 law to be completed in order to make the races more attractive in the future.

With the details of F1 rule in 2021 being held by F1 organizers, FIA and racing teams are gradually being completed. Part of the new law has been revealed. If approved, it will be the first time since the 1982 season that ground-effect racing cars will return to the F1 track.

The ground effect was first applied by the famous Lotus racing team on Lotus 78 in 1977 before Lotus completed the design for the Lotus 79-dominated F1 next year, thereby bringing F1 into the era of branding. However, the development of ground effects makes the cars have extremely high pressures and dangerous speed of cornering. This makes speed sports lawmakers have to ban the use of ground effects for the 1983 season after many dangerous accidents occurred in 1982.

FIA believes that with the new law including ground effect, simpler aerodynamic design and air deflector wheels on the front wheels will help the vehicles on the rear run in front of vehicles. An easier way.

According to the simulator, the current generation F1 car lost about 45% of the pressure when it was in the distance of 2 pieces of cars behind the car in front. As for the law in 2021, the vehicles in the back will only take about 5-10% of the pressure compared to the vehicles running ahead.

The current Formula 1 generation uses flat roofs with air running through the diffuser in the back with the rear spoiler creating the majority of pressure for F1 cars. However, this design creates swirling airways, disrupting the vehicles behind it, also known as dirty gas.

Therefore, to create a ground effect, the new F1 generation will use the undercarriage of Venturi effect. Basically, the Venturi effect will allow wind to pass through a narrow and flat place, accelerating and reducing pressure. When the wind comes out of that space, it will reduce the speed but increase the compressive pressure on the road surface, making it faster for cornering. Higher wind diffusers on the rear of the vehicle allow airflow to flow in a straight line, helping to prevent the wind’s reduction and help the car run faster.


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