downwash
noun Date: 1915 an airstream directed downward (as by an airfoil)

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Downwash — The effect of downwash from a hovering helicopter is clearly visible on the surface of water below. In aeronautics downwash is the air forced down by the aerodynamic action of a wing or helicopter rotor blade in motion, as part of the process of… …   Wikipedia

  • downwash — [doun′wôsh΄] n. the downward deflection of air as by an airplane wing …   English World dictionary

  • Downwash — Abwind ist die Bezeichnung für einen Wind, der sich vom Standpunkt des Betrachters fortbewegt. Herrscht z. B. in einer Region vorwiegend Westwind und das Wohngebiet Musterwalde liegt östlich der Industrieanlage XYZ, dann kann man sagen, dass das… …   Deutsch Wikipedia

  • downwash — /down wosh , wawsh /, n. Aeron. a deflection of air downward relative to an airfoil that causes the deflection. [1910 15; DOWN1 + WASH] * * * …   Universalium

  • downwash — noun a) downward air turbulence caused by a propeller or jet, but especially by helicopter blades b) The downward motion of air as a result of eddies behind a wing or chimney etc …   Wiktionary

  • downwash — i. Fluid flow moving at a deflected angle after deflection by helicopter rotors and measured parallel to the disc. ii. Fluid flow deflected at an angle more perpendicular to the motion of the airfoil, measured in the plane parallel to the plane… …   Aviation dictionary

  • downwash — noun the downward deflection of an airstream by a wing or rotor blade …   English new terms dictionary

  • downwash — /ˈdaʊnwɒʃ/ (say downwosh) noun the air deflected downwards by an aerofoil …   Australian English dictionary

  • downwash — ˈ ̷ ̷ˌ ̷ ̷ noun 1. : material washed downward (as from a mountainside) 2. aeronautics : the airstream which is deflected downward by an airfoil and the momentum of which gives rise by its reaction on the airfoil to the lift …   Useful english dictionary

  • downwash angle — The angle formed between the direction of air movement as it approaches an airfoil and as it leaves it …   Aviation dictionary

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