New Evaluation Technique for WTG Design Wind Speed Using a CFD-Model-Based Unsteady Flow Simulation with Wind Direction Changes
Figure 6
(a) 10-minute moving average values of the fractional increase of hubheight wind speed, and (b) corresponding turbulence intensity. Here, the results from Turbine no. 1 are given as an example.
(a) Fractional increase of hubheight wind speed = (horizontal wind speed at turbine hubheight)/(horizontal wind speed at hubheight) from Figure 2 and Table 1