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Wake Signature of Finite-Span Flapping Rigid Wings

In: High Performance Computing in Science and Engineering '10

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  • Joel E. Guerrero

    (University of Genoa)

Abstract

A numerical study is conducted in order to investigate the wake signature and aerodynamics forces of finite-span flapping wings. The unsteady laminar incompressible Navier-Stokes equations are solved on moving overlapping structured grids using a second-order accurate in space and time finite-difference scheme. Specifically, finite-span rigid wings undergoing pure heaving and root-flapping motions are studied. From the results presented, it is found that root-flapping wings produce wake structures similar to those of heaving wings, but with the difference that the latter wing kinematics generates larger vortices and forces than root-flapping wings; aside from this, similar wake regimes occurs at comparable values of the Strouhal numbers. The numerical simulations are performed at a Reynolds number of Re=250 and at different values of Strouhal number and reduced frequency.

Suggested Citation

  • Joel E. Guerrero, 2011. "Wake Signature of Finite-Span Flapping Rigid Wings," Springer Books, in: Wolfgang E. Nagel & Dietmar B. Kröner & Michael M. Resch (ed.), High Performance Computing in Science and Engineering '10, pages 407-427, Springer.
    • Handle: RePEc:spr:sprchp:978-3-642-15748-6_31
    DOI: 10.1007/978-3-642-15748-6_31
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