- upper surface of the airfoil
- 机翼上表面
English-Chinese dictionary of mechanical engineering (英汉机械工程大词典). 2013.
upper surface of the airfoil
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upper camber — The curvature of the upper surface of an airfoil. It is the distance between the mean camber line and the chord line when the mean camber line lies above the chord line. Also called a positive camber. See also camber … Aviation dictionary
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
Supercritical airfoil — it has since been mainly applied to increase the fuel efficiency of many high subsonic aircraft. Research in 1940 by DVL s K. A. Kawalki led to subsonic profiles very similar to the supercritical profiles, which was the basis for the objection in … Wikipedia
NACA airfoil — Profile geometry – 1: Zero lift line; 2: Leading edge; 3: Nose circle; 4: Camber; 5: Max. thickness; 6: Upper surface; 7: Trailing edge; 8: Camber mean line; 9: Lower surface … Wikipedia
Kutta condition — The Kutta condition is a principle in steady flow fluid dynamics, especially aerodynamics, that is applicable to solid bodies which have sharp corners such as the trailing edges of airfoils. It is named for German mathematician and aerodynamicist … Wikipedia
Pressure coefficient — The pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics. The pressure coefficient is used in aerodynamics and hydrodynamics. Every point in a fluid flow field has its own … Wikipedia
Drag divergence Mach number — The drag divergence Mach number (not to be confused with critical Mach number) is the Mach number at which the aerodynamic drag on an airfoil or airframe begins to increase rapidly as the Mach number continues to increase[1]. This increase can… … Wikipedia
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
Angle of attack — In this diagram, the black lines represent the flow of a fluid around a two dimensional airfoil shape. The angle α is the angle of attack. Angle of attack (AOA, α, Greek letter alpha) is a term used in fluid dynamics to describe the angle between … Wikipedia
Coeficiente de presión — El coeficiente de presión es un número adimensional que describe la presión relativa a través de un campo de flujo en dinámica de fluidos. El coeficiente de presión es usado en aerodinámica e hidrodinámica. Cualquier punto inmerso en el flujo de… … Wikipedia Español
negative camber — i. An airfoil in which the mean camber line lies below the chord line. It denotes that the upper surface of the airfoil is concave and not convex. ii. An arrangement of the undercarriage in which the wheels are tilted inward of the vertical.… … Aviation dictionary
