Wind turbines commonly use stall control to limit the power at higher wind speeds, as described in the 2001 thesis Flow Separation on Wind Turbine Blades by Gustave Paul Corten. The thesis starts with the following description of state-of-the-art:
- Presently it is impossible to calculate the lift and drag characteristics of an airfoil accurately. Especially beyond the stall angle, the calculations can be off by tens of percents. For that reason airfoil characteristics still have to be determined in wind tunnels.