downwash的意思|示意

downwash is a term used when talking about airplanes. It is the movement of air downwards and aft, or behind, a wing. This is created by the airflow over the front of an airplane’s wings, and the pressure difference between the higher pressure over the top of the wing and the lower pressure below the wing. This difference creates a downward thrust, which is known as downwash.

Downwash is useful because it creates downward thrust, which helps the plane to generate lift and stay in the air. This lift is what enables a plane to fly, and the downwash helps it maintain this lift. It also helps to increase the airplane’s stall speed and maneuverability.

Downwash is often used to explain how the airflow of an airplane works. For example, when an airplane is flying in a straight line, the downwash will be directed downwards behind the wing, creating lift and helping the plane stay in the air. However, when an airplane is turning, the downwash will be directed towards one side, causing the airplane to turn in that direction.

Downwash is also used when talking about helicopters. Helicopters have rotors on their tops and sides, and these rotors create a downwash effect when they turn. This downwash helps to create lift and keeps the helicopter in the air.

In conclusion, downwash is a very important concept when it comes to airplane and helicopter operations. It helps to create lift and helps the plane stay in the air, as well as increasing its speed and maneuverability. It is also important to understand when trying to explain how the airflow works on an airplane or helicopter.