25th Congress of International Council of the Aeronautical Sciences, 3 - 8 September 2006, Hamburg, Germany
Paper ICAS 2006-3.2.2

PRELIMINARY EXPERIMENTS OF FLAPPING WING IN THREE-DEGREE-OF-FREEDOM MOTIONS

X. Huang, T. Brown
National Research Council/IAR, Canada

Keywords: flapping wing aerodynamics, water tunnel experiment, three-degree-of-freedom

Studies were conducted on flapping wings in complex three-degree-of freedom motions. A five-component balance measured the aerodynamic forces at Re 6500-20000. Dye flow visualization was visualized. Results show that the lift was enhanced by the leading edge vortex. The coefficient could reach 2 and maintain within 2-3 convection time.

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