Research Article
Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT
Figure 11
The vortices contours of H-VAWT under three considered Reynolds number at ψ=0.25, (a) Re= 3.41 × 105, (b) Re= 5.12 × 105, and (c) Re= 6.82 × 105.
(a)
(b)
(c)