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Cavitation limits on tidal turbine performance

Abstract:

Blockage effects are currently not accounted for in cavitation analyses of tidal turbine rotors. At higher blockage ratios, rotors are more heavily loaded and have potentially stronger suction peaks, so cavitation inception is more likely. In this paper, blade resolved computations are used to carry out a cavitation analysis over a range of blockage ratios and tip-speed-ratios. Our analysis suggests that increasing the blockage ratio from 0.01 to 0.197 reduces the minimum static pressure head...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted Manuscript

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Publisher copy:
10.1016/j.oceaneng.2018.01.060

Authors


More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Engineering Science
Oxford college:
St Edmund Hall
Engineering and Physical Sciences Research Council More from this funder
Uniper Technologies Ltd More from this funder
Publisher:
Elsevier Publisher's website
Journal:
Ocean Engineering Journal website
Volume:
152
Pages:
223-233
Publication date:
2018-02-23
Acceptance date:
2018-01-13
DOI:
ISSN:
0029-8018
Pubs id:
pubs:831282
URN:
uri:f663572f-e18e-442f-96c2-656bd690f37b
UUID:
uuid:f663572f-e18e-442f-96c2-656bd690f37b
Local pid:
pubs:831282

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