Numerical Study of a Horizontal Wind Turbine under Yaw Conditions

Figure 13

(a) Instantaneous vortices visualized with the isosurface of Q = 0.01 colored by the magnitude of velocity gradient and (b)_I-XII contour of velocity gradient magnitude and the isosurface of Q = 0.2, for each 30° of revolution in 30° yawed case.

(a)

(b)