Formula 1 Rear wing - F1 Tamizhan Before the diffuser came into action, it was wing structures that were included in front and rear, which are called as front and rear bodyworks. As we have seen in previous posts, more than 50% of the downforce is contributed by the rear body works, wing and diffuser. What is rear wing? The rear wing consists of two elements 1. Main plane 2. Adjustable flap Both the elements are in the shape of inverted airfoil held together in position with help of endplates. The main plate does not move and remains fixed. The purpose of endplates are to compensate the resulting vortices formed from wing edges which we will see in the upcoming post. Here we explore the structure of rear wing and how does it work. a. How does the main plane function? It directs the clean air flowing over the side bodywork upwards thereby exerting downforce that makes the car to stick more to the ground. The whole design has to in such a way, the stall should not happen because of ...
What does adjusting flaps do? Adjusting the flap breaks the operation of the main plate of the rear wing and flaps together as a single unit. This improves the speed of the car by 10-15kmph by reducing the downforce (depends on design) and drag ( 5%). How does it reduce downforce and drag? As we see in the image, when the flap is deployed, airflow over the wing is broken and separated. This creates a condition of the wake that reduces the effectiveness of the wing, much of the air escapes the gap between the main plate and flap, thereby reducing downforce and consequent drag of the car. As downforce and drag is reduced, the car lightens thereby increasing top speed by 10-15 kmph.
Endplates are a pretty important component of wings that enables efficient functioning of them. End plates - F1 Tamizhan a.End plates We saw how does rear wing is formed by multiple airfoils bound together. End plates serve the most important function in the rear bodywork. End plates at either end provide sturdy support for the airfoils to be held in the desired position. Adding to this structural support, preventing swirling vortices from the rear airfoils which create induced drag, is the major feature of the endplates. And end plates also prevent turbulent air raising from tires from disturbing the airflow over the rear bodywork. b. What is swirling vortices and how it is prevented by end plates? As we know when an airfoil encounter airflow, a pressure differential is created between the top and bottom region of the airfoil. The normal tendency of high-pressure air to enter low-pressure region leads to the air to swirl around the edge of the airfoil. if it is not for endplates,...
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