airfoil/aerofoil

A body of such shape that the force exerted on it by its motion through a fluid has a larger component normal, or perpendicular, to the direction of the motion than along the direction of the motion. This force is in the form of lift or thrust. A wing is a typical airfoil. The shape of an airfoil varies depending upon its use. Wings, control surfaces, and turbine blades are all examples of airfoils. An airfoil section is parallel to an aircraft’s longitudinal axis and, in the case of aeroengines and rotors or propellers, perpendicular to a blade’s major axis.
Relative air flow passing over an airfoil produces lift and drag.

Aviation dictionary. 2014.

Look at other dictionaries:

  • airfoil — (n.) 1922, U.S. form of AEROFOIL (Cf. aerofoil) …   Etymology dictionary

  • airfoil — air foil n. 1. 1 a surface such as the wing of an airplane designed to provide reactive force when in motion relative to the surrounding air. Syn: aerofoil [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Airfoil — An airfoil (in American English) or aerofoil (in British English) is the shape of a wing or blade (of a propeller, rotor or turbine) or sail as seen in cross section. An airfoil shaped body moved through a fluid produces a force perpendicular to… …   Wikipedia

  • aerofoil — UK [ˈeərəˌfɔɪl] / US [ˈerəˌfɔɪl] noun [countable] Word forms aerofoil : singular aerofoil plural aerofoils physics British a curved part on an aircraft s wing that helps it to rise in the air. The American word is airfoil …   English dictionary

  • airfoil — /air foyl /, n. Aeron. any surface, as a wing, aileron, or stabilizer, designed to aid in lifting or controlling an aircraft by making use of the air currents through which it moves. [1920 25; AIR1 + FOIL2] * * * Shaped surface, such as an… …   Universalium

  • airfoil classification — Airfoils are divided into three classes: high lift, general purpose, and high speed. High lift aerofoil sections are normally used on sailplanes and aircraft with short field operations. They have a high thickness chord ratio, a pronounced camber …   Aviation dictionary

  • aerofoil engineer — aerodinaminių profilių inžinierius statusas T sritis profesijos apibrėžtis Inžinierius, kuris specializuojasi mažo aerodinaminio pasipriešinimo profilių kūrimo ir įdiegimo srityje. atitikmenys: angl. aerofoil engineer; airfoil engineer pranc.… …   Inžinieriai, technikai ir technologai. Trikalbis aiškinamasis žodynėlis

  • airfoil engineer — aerodinaminių profilių inžinierius statusas T sritis profesijos apibrėžtis Inžinierius, kuris specializuojasi mažo aerodinaminio pasipriešinimo profilių kūrimo ir įdiegimo srityje. atitikmenys: angl. aerofoil engineer; airfoil engineer pranc.… …   Inžinieriai, technikai ir technologai. Trikalbis aiškinamasis žodynėlis

  • aerofoil — noun Date: 1907 chiefly British airfoil …   New Collegiate Dictionary

  • aerofoil — /air euh foyl /, n. Brit. airfoil. [AERO + FOIL2] * * * …   Universalium

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