Abstract
In this paper the aerodynamic and aeroacoustic characteristics of a wind turbine airfoil have been numerically investigated. The modified versions of TU Delft DU97-W-300 airfoil with a flatback trailing edge and a splitter plate were selected. IDDES method was introduced and provided good results compared with the experimental data with regard to the lift. Aeroacoustic analysis focused on the amplitude and frequency of noise associated with the vortex-shedding tone from the trailing edge wake. The results showed that wake flows were significantly effected by the addition of a splitter plate to the flatback trailing edge, and lead to reduction on both drag and noise.
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