Figure 5. Lift coefficient (𝐶L) versus angle of attack (α) for Baseline airfoil, Static Extended Trailing Edges (SETE), and Gurney Flaps (GF) under steady and unsteady flow

From

Numerical Investigation of a NACA 0012 Airfoil with Static-Extended Trailing Edges and Gurney Flaps for Low-Reynolds-Number Wind Turbine Applications

Tiberius S. Gikenyi, Churchill O. Saoke, Joseph N. Kamau

American Journal of Energy Research. 2025, 13(3), 86-95 doi:10.12691/ajer-13-3-2