Fig. 17. Pressure contour plots on the suction surface of the blades for cases: No upstream AD (first). Rotor 7D downstream: of aligned AD (second), 0.5D offset AD (third) - out of wake (left) and behind the wake (right), and 1D offset AD (fourth) - out of wake (left) and behind the wake (right).Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 18. Relative position of PF-04447943 single turbine blade relative to upstream wake for case 0.5D offset. The actual wake width varies depending on distance between wind turbines.Figure optionsDownload full-size imageDownload as PowerPoint slide
Fig. 19. Torque plot for position r/R = 0.7 on a single blade throughout one rotation for case 7D.Figure optionsDownload full-size imageDownload as PowerPoint slide
The wind turbines found in the second row of an array have been shown to perform poorer when compared to those in the third row , . The torque plot shown in Fig. 20 depicts the torque along a point on the blade through a single rotation for both cases. It reflects capillary bed the torque production for a wind turbine in the third row is significantly improved, especially for the cases for where there is increased interaction with the wake from another rotor.