Abstract
Active flow control can offer significant improvements to aircraft, helicopter, and wind-turbine rotor performance by suppressing detrimental effects of separated flow and dynamic stall. Numerical simulations of pulsating jet flow control of oscillating airfoil dynamic stall is performed for high Reynolds number turbulent flows. Currently available efficient and accurate numerical methods for the Navier-Stokes equations and advanced turbulence models are used for the prediction of the complex, unsteady flowfields generated by the pulsating jets. Both incompressible and compressible flow conditions are considered. It is found that pulsating jet flow control can significantly reduce the adverse effects of dynamic stall. The effect of the jet location on dynamic stall characteristics is investigated.
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