Abstract
A computational fluid dynamics study is conducted to examine the aerodynamic behavior of a low Reynolds number plunging airfoil. The influence of Reynolds number (Re) and Strouhal number (St) on the fluid flow is investigated. In this study, incompressible NavierStokes (N-S) equations are solved using a Finite Volume Method (FVM). The instantaneous lift coefficients and the corresponding vortical structures are analyzed. Results show that both Re and St have great influence on the lift coefficients. They affect the maximum lift coefficients and the vortical patterns around the airfoil. Hence, an optimum aerodynamic performance demands a careful selection of these parameters.
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