000021241 001__ 21241
000021241 005__ 20170522124345.0
000021241 04107 $$aeng
000021241 046__ $$k2017-05-15
000021241 100__ $$aBang N., V.
000021241 24500 $$aAERODYNAMIC HYSTERESIS OF OSCILLATING AIRFOIL

000021241 24630 $$n23.$$pEngineering Mechanics 2017
000021241 260__ $$bBrno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Brno
000021241 506__ $$arestricted
000021241 520__ $$2eng$$aIn the aerodynamic calculations, the steady aerodynamic data, which contain the coefficients in form of a function dependent only on the angle of attack (AoA) are used. However, the airfoil aerodynamic characteristics are always unsteady in the real conditions at the same AoA can be different because of the time delay, which occurs in dynamic state. The unsteady approach can improve the aerodynamic calculation process of propellers and wind turbines in the yaw (in the crosswind) or helicopter rotors at high forward speed. This paper contains the results of wind tunnel test of the oscillating airfoil which demonstrate hysteresis properties of airfoil aerodynamics and the dependency of aerodynamic hysteresis on the angular frequency.

000021241 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021241 653__ $$aOscillating airfoil, 2D airfoil, Aerodynamic hysteresis, Angular frequency, Dynamic stall.

000021241 7112_ $$aEngineering Mechanics 2017$$cSvratka, CZ$$d2017-05-15 / 2017-05-18$$gEM2017
000021241 720__ $$aBang N., V.$$iRozehnal, D.
000021241 8560_ $$ffischerc@itam.cas.cz
000021241 8564_ $$s1029611$$uhttps://invenio.itam.cas.cz/record/21241/files/0106.pdf$$yOriginal version of the author's contribution in proceedings, page 106, section FLU.
000021241 962__ $$r21225
000021241 980__ $$aPAPER