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angle-of-attack boundary

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  • Boundary-layer thickness — This page describes some parameters used to measure the properties of boundary layers. Consider a stationary body with a turbulent flow moving around it, like the semi infinite flat plate with air flowing over the top of the plate. At the solid… …   Wikipedia

  • Boundary layer control — In aeronautical engineering, boundary layer control (BLC) refers to a number of methods of controlling the boundary layer of air on the main wing of an aircraft. In doing so, parasitic drag can be greatly reduced and performance likewise… …   Wikipedia

  • critical angle — 1. Optics. the minimum angle of incidence beyond which total internal reflection occurs for light traveling from a medium of higher to one of lower index of refraction; the angle of incidence for which refracted rays emerge tangent to the surface …   Universalium

  • buffet boundary — The speed boundaries within which airflow separates from the wing and the buffet is experienced. The low speed buffet is caused by flow separation as the aircraft approaches the stalling angle of attack. At higher Mach numbers, the high speed… …   Aviation dictionary

  • critical angle — noun a) The smallest angle of incidence for which light is totally reflected from a boundary between one medium and a less refractive one b) The smallest angle of attack of an airfoil at which lift suddenly decreases and drag suddenly increases …   Wiktionary

  • K–T boundary — The K T boundary is a geological signature, usually a thin band, dated to 65.5 ± 0.3 (mya). [ [http://www.stratigraphy.org/cheu.pdf International commission for Stratigraphy] ] K is the traditional abbreviation for the Cretaceous Period, and T is …   Wikipedia

  • Flank attack — Flank Flank (fl[a^][ng]k), n. [F. flanc, prob. fr. L. flaccus flabby, with n inserted. Cf. {Flaccid}, {Flanch}, {Flange}.] 1. The fleshy or muscular part of the side of an animal, between the ribs and the hip. See Illust. of {Beef}. [1913… …   The Collaborative International Dictionary of English

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  • Stall (flight) — For other uses, see stall. In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases. This occurs when the critical angle of attack of the foil is exceeded. The critical angle of attack is… …   Wikipedia

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  • Lift (force) — For other uses, see Lift. Boeing 747 8F landing A fluid flowing past the surface of a body exerts a surface force on it. Lift is the component of this force that is perpendicular to the …   Wikipedia

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