  CFD studies have been performed to demonstrate the effects of rotation on
large wind turbine blades. The 10 MW blade of the Advanced Aerodynamic Tools
for Large Rotors (AVATAR) project was selected in the present investigation. In
order to demonstrate the rotational augmentation, lift coefficients of the
blade sections were compared with the two-dimensional simulations at consistent
inflow conditions. The increase of the lift coefficient was observed at the
inboard section of the blade, showing the effect of rotation. A significant
delay of separation point as well as a massive reduction of the wake size occur
at the inboard blade section. The results of the present manuscript provide
more information of the rotational augmentation occurring in the near hub
region of wind turbine blades.
