- wing/drag ratio
- Авиация: аэродинамическое качество
Универсальный англо-русский словарь. Академик.ру. 2011.
wing/drag ratio
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Lift-to-drag ratio — In aerodynamics, the lift to drag ratio, or L/D ratio ( ell over dee in the US, ell dee in the UK), is the amount of lift generated by a wing or vehicle, divided by the drag it creates by moving through the air. A higher or more favorable L/D… … Wikipedia
Wing shape optimization — is a software implementation of shape optimization primarily used for aircraft design. This allows for engineers to produce more efficient and cheaper aircraft designs.HistoryShape optimization, as a software process and tool, first appeared as… … Wikipedia
lift-to-drag ratio — noun a) The instantaneous ratio of lift to drag of an aerodynamic article such as an a wing, entire aircraft or bird. b) The maximum ratio of lift to drag of an … Wiktionary
Wing loading — In aerodynamics, wing loading is the loaded weight of the aircraft divided by the area of the wing. [Thom, 1988. p. 6.] It is broadly reflective of the aircraft s lift to mass ratio, which affects its rate of climb, load carrying ability, and… … Wikipedia
Drag reduction system — DRS in action: open above, closed below Driver adjustable bodywork,[1] commonly known as drag reduction system (or DRS), is a motorsport technology aimed at reducing aerodynamic drag in order to promote overtaking in Formula One. DRS was… … Wikipedia
Wing — A wing is a surface used to produce lift for flight through the air or another gaseous medium. The wing shape is usually an airfoil. The word originally referred only to the foremost limbs of birds, but has been extended to include the wings of… … Wikipedia
Wing configuration — For aircraft configurations in general, including fuselage, tail and powerplant configuration, see Aircraft. For rotary winged aircraft types, see Rotorcraft. For direct lift and compound or hybrid types, see Powered lift. Fixed wing aircraft,… … Wikipedia
Drag (physics) — Shape and flow Form drag Skin friction 0% 100% 10% 90% … Wikipedia
Drag equation — In fluid dynamics, the drag equation is a practical formula used to calculate the force of drag experienced by an object due to movement through a fully enclosing fluid. The equation is attributed to Lord Rayleigh, who originally used L2 in place … Wikipedia
Aspect ratio (wing) — In aerodynamics, the aspect ratio of a wing is defined as the square of the wing span divided by the wing area.:AR = {b^2 over S}where: b is the wing span, and: S is the wing area.Informally, a high aspect ratio indicates long, narrow wings,… … Wikipedia
effective profile drag — The difference between the total wing drag and the induced drag of a wing with the same aspect ratio but elliptically loaded. Profile drag is the combined effect of form drag and skin friction and which increases as square of the speed and is… … Aviation dictionary
