Wingtip device - Wikipedia
网页Wingtip devices are intended to improve the efficiency of fixed-wing aircraft by reducing drag. [1] Although there are several types of wing tip devices which function in different manners, their intended effect is always to reduce an aircraft's drag.
This Is How Winglets Work - Boldmethod
网页2022年3月12日 · How do winglets work? Find out how they counteract drag at high angles of attack, and how they interact with wingtip vortices.
Winglets | Glenn Research Center | NASA
网页2023年11月2日 · Winglets were wind tunnel tested and computer analyzed by Richard Whitcomb of the NASA Langley Research Center in the mid 1970’s. The idea behind the winglet is to reduce the strength of the tip vortex and therefore cause the flow across the wing to be more two-dimensional.
How Things Work: Winglets | Smithsonian
网页Winglets reduce wingtip vortices, the twin tornados formed by the difference between the pressure on the upper surface of an airplane's wing and that on the lower surface. High pressure on...
What Are The Different Kinds Of Winglets? - Simple Flying
网页2023年9月6日 · Winglets are vertical extensions of wingtips that improve fuel efficiency and cruising range by reducing drag caused by vortices. The most popular types of winglets in commercial aviation are canted, blended, split-scimitar, and sharklets.
What are the types of aircraft winglets and how do they work?
网页2023年6月1日 · Winglets are essentially aerodynamic performance enhancers. Their primary purpose is to improve aircraft performance by reducing aerodynamic drag. Drag degrades the aircraft’s performance, especially at high speeds and high altitudes where commercial airliners spend most of their time.
Why modern airplanes have winglets - CNN
网页2022年4月13日 · Winglets are now found on almost every small and mid-sized jet in the world, although their efficacy on bigger aircraft is less obvious.
On the Winglets of Innovation with NASA Armstrong - NASA
网页2023年7月17日 · Winglets are designed to operate in the wingtip “vortex,” a whirlpool of air that occurs at an airplane’s wingtips. This whirlpool of air spirals back behind an airplane, resulting in drag. Winglets reduce that energy loss by stemming airflow down the wing and decreasing those wingtip whirlpools.
What are winglets, the aesthetically-pleasing aerodynamic marvel …
网页2022年7月16日 · Winglets cut down on a phenomenon called wake vortices that trail off the tips of an aircraft's wings. These vortices can cause significant drag, making aircraft less efficient. Winglets are technically small wings that generate lift and can cut down on the amount of drag created, therefore reducing fuel consumption and increasing an aircraft's ...
| How Things Fly - Smithsonian Institution
网页2013年10月25日 · Winglets are devices used on the tips of a wing to reduce vortex drag, which are "tornadoes" formed by the difference of pressure on the upper and lower surfaces of the wing as the air rejoins. The winglets are bent upwards and are used on many airplanes today.