Iowa State engineer models wind turbines for better designs, performance

Ming-Chen Hsu, an Iowa State University assistant professor of mechanical engineering, searched his computer for a video and clicked play. The tip of a wind turbine blade appeared on his monitor, constantly moving, flexing and vibrating as the blade rotated around the rotor hub. Red indicated air moving at a relative speed of 52 meters per second over the top of the blade; blue and green marked the slower air around the blade. Read more.