A lot of people have been on a plane, but they've been wondering: how can a few hundred tons of iron guys fly in the sky
The core principle is that air flows up and down the wings at different speeds, creating a low pressure and forming upwardsRaiseHold the plane。
1. Special shape of wings
The wing of the aircraft is not a flat plate, but is arc-shaped and relatively flat below. As the aircraft moved forward at high speed, the air was separated from the front of the wing, partly from the surface of the wing and partly from the lower surface。
The upper air travels longer and faster; the lower air flow is slow. According to the bernouli doctrine, the speed of flow is small and the speed of flow is strong。
The pressure below the wing. The pressure above. The pressure is low。
2. Rare organic wing shapes are not sufficient and speed is critical
The lifting size and speed are closely related. The aircraft must accelerate in the runway to a certain speed and generate sufficient lift. When the lifting is greater than the aircraft's own weight, the aircraft takes off from the ground。
If the speed is insufficient and the lift is insufficient, the aircraft cannot fly. This is also why the plane takes off with a long runway。
3. There is another easy point to ignore: the corner
Upon take-off, the head is slightly lifted, and the wings and face-to-face air current form an accelerator (opposite), further increasing the lift. But it's not too big, and it's going to get out of the wings at the angle, and it's going to disappear in an instantSlow downI'm sorry。
Brief summary
The engine is responsible for pushing the aircraft forward; the wings use air flow differentials to create upward lift; and the lift exceeds the gravity and the aircraft lifts. The engine does not “blow up” the plane directly, but rather provides the power to move forward。
Rumour: it's not the engine that pushes the plane up. It is the rotary wing that is used to blow down the air, unlike the fixed-wing aircraft。
Interacting: did you ever think about how a plane so heavy could fly? Talk to the comment section。
