- downwash angle
- угол скоса потока (вниз)
Авиасловарь. М.А.Левин. 2004.
Авиасловарь. М.А.Левин. 2004.
downwash angle — The angle formed between the direction of air movement as it approaches an airfoil and as it leaves it … Aviation dictionary
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
effective angle of attack — That part of a given angle of attack that lies between the chord of an airfoil and a line representing the resultant velocity of the disturbed flow. This angle is measured on a finite wing, but it has the same effective magnitude as that of an… … Aviation dictionary
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transverse flow effect — The unequal drag in the fore and aft parts of the rotor disc, which results in vibrations in most helicopters at speeds between 10 and 20 knots. In forward flight, air passing through the rear portion of the rotor disc has a greater downwash… … Aviation dictionary
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