论文信息 - COMPRESSIBILITY EFFECTS ON OSCILLATING ROTOR BLADES IN HOVERING FLIGHT

COMPRESSIBILITY EFFECTS ON OSCILLATING ROTOR BLADES IN HOVERING FLIGHT

Abstract : A theory is developed and used for determining the influence of compressibility on the aerodynamic forces acting on helicopter rotor blades when oscillating in hovering flight. The usual two-dimensional mathematical model of the flow is adopted in which a section of the reference rotor blade and its helical wake is replaced by an airfoil with a straight wake and a system of regularly spaced infinite wakes below, the amount of spacing depending on the downward flow induced by the rotor and the number of blades. (Author)

B. M. Rao | W. P. Jones | W. Jones

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