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http://dx.doi.org/10.5139/JKSAS.2002.30.4.044

Numerical Study on Aerodynamic Characteristics of Flapping-Airfoil in Low Reynolds Number Flows  

Lee, Jung-Sang (서울대학교 기계항공공학부 대학원)
Kim, Chong-Am (서울대학교 기계항공공학부)
Rho, Oh-Hyun (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.4, 2002 , pp. 44-52 More about this Journal
Abstract
Aerodynamic characteristics of a flapping airfoil in low Reynolds number flows are numerically studied using the unsteady, incompressible Navier-Stokes flow solver with a two-equation turbulence model. For more efficient computation of unsteady flows over flapping airfoil, the flow solver is parallel-implemented by MPI programming method Unsteady computations are performed for low Reynolds number flows over a NACA four-digit series airfoils. Effects of pitching, plunging, and flapping motion with different reduced frequency, amplitude, thickness and camber on aerodynamic characteristics are investigated. Present computational results yield a better agreement in thrust at various reduced frequency with experimental data.
Keywords
Low Reynolds Number Flow; Unsteady Flow; Parallel-Implementation; Two-Equation Turbulence Model; Flapping; Pitching; Plunging; Propulsion Efficiency;
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