27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS2010-P2.11

NUMERICAL INVESTIGATION ON THE PROPULSIVE EFFICIENCY OF FLAPPING AIRFOIL WITH DIFFERENT UP-DOWN PLUNGE MODELS

X. Zhang, C. Zhou
Harbin Institute of Technology, China

Keywords: flapping wing, plunge model, unsteady flow, vortex street

Study investigates the effect of plunge models on aerodynamic characteristics of a flapping airfoils. The Navier-Stokes equations are solve using finite volume method by means of the dynamic mesh technique. The Numerical results show the forces and propulsive efficiency significantly affected by the ratio between up and down plunge duration.

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