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A summary of current research in rotor unsteady aerodynamics with emphasis on work at Langley Research Center (1973)

Ward, J. F. ; Young, W. H., Jr.

In: CASI

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Publication Date: 2011-10-14

Description: The basic unsteady aerodynamic environment of the rotary wing is summarized. Some of the observed trends in the state of the art are discussed. Some of the research needs that will require attention are reported. A review of a number of research investigations as a part of a joint NASA/Army rotorcraft project is presented. The research is directed toward achieving a better understanding of rotor unsteady airfoils. The investigations include: (1) rotor maneuver loads; (2) level flight and maneuver wake prediction; (3) tip-vortex flow; (4) blade-vortex interactions; (5) dynamic stall; (6) transient Mach number air loads; and (7) development of variable geometry rotors.

Keywords: AERODYNAMICS

Type: AGARD Aerodyn. of Rotary Wings; 20 p

Format: text

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