Research Article

Comparisons between the Wake of a Wind Turbine Generator Operated at Optimal Tip Speed Ratio and the Wake of a Stationary Disk

Figure 12

Spanwise profiles of the time-averaged streamwise ( ) velocity at (( ) = (0, 0, 0) indicates the center of the rotor; see Figure 3). The profiles are observed at (○), (□) and (), where is the rotor diameter. The streamwise velocity and the spanwise position on the -axis are normalized by the uniform inflow velocity, , and , respectively. The -coordinate of the rotor is shown with arrows.
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(a) WTG operated at optimal tip speed ratio
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(b) Stationary disk