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Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT
Joint Authors
Source
International Journal of Rotating Machinery
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-08-01
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
This paper performs a systematic numerical study to investigate the effect of rotation friction ratio on the power extraction performance of a passive rotation H-type vertical axis wind turbine (H-VAWT).
In contrast to the previous literature, the present work does not impose rotation velocity on the turbine, and the rotation friction ratio which reflects the effect of external load characteristics on the turbine is introduced to the governing equation of the turbine.
During each iteration, the rotation velocity of the turbine is computed after having determined the aerodynamic torque exerted on the blade of the turbine.
This is more consistent with the actual working environment of the H-VAWT.
A novel numerical coupling model was developed to simulate the interaction between the fluid and the passive rotation of the H-VAWT; then, the power extraction performance of the turbine with different rotation friction ratio was systematically analyzed.
The results demonstrate that the power extraction performance of H-VAWT will be enhanced when the H-VAWT has appropriate rotation friction ratio.
It is also found that the flow separation induced by large angle of attack is alleviated essentially if the H-VAWT has appropriate rotation friction ratio, which makes the H-VAWT have better energy extraction performance.
American Psychological Association (APA)
Zhu, Jianyang& Tian, Changbin. 2019. Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT. International Journal of Rotating Machinery،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1168559
Modern Language Association (MLA)
Zhu, Jianyang& Tian, Changbin. Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT. International Journal of Rotating Machinery No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1168559
American Medical Association (AMA)
Zhu, Jianyang& Tian, Changbin. Effect of Rotation Friction Ratio on the Power Extraction Performance of a Passive Rotation VAWT. International Journal of Rotating Machinery. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1168559
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168559