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International Journal of Rotating Machinery
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International Journal of Rotating Machinery
/
2019
/
Article
/
Fig 7
/
Research Article
Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT
Figure 7
Power coefficient versus azimuth angle for the three considered
ψ
at
Re
= 6.82 × 10
5
.