The Surface Curvature Effect on Performance of a Laboratory Scale Tidal Turbine

Kaiming Ai (), Eldad Avital (), Xiang Shen (), Abdus Samad () and Nithya Venkatesan ()
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Kaiming Ai: Queen Mary University of London, School of Engineering and Materials Science
Eldad Avital: Queen Mary University of London, School of Engineering and Materials Science
Xiang Shen: Queen Mary University of London, School of Engineering and Materials Science
Abdus Samad: IIT Madras, Ocean Engineering
Nithya Venkatesan: VIT Chennai, Electric Engineering

Chapter Chapter 8 in Transactions on Engineering Technologies, 2019, pp 101-113 from Springer

Abstract: Abstract This paper presents numerical study of the surface curvature effects on the performance of a 3D lab scale tidal turbine (E387) using Eppler 387 airfoil. The prescribed surface curvature distribution blade design method is used to remove the surface curvature discontinuity of E387 turbine and the redesigned turbine is denoted as A7 turbine. The two turbines are analysed using in-house BEM code and CFD RANS. The performance of E387 turbine obtained from BEM and RANS match well with the experimental results from reported literature. The A7 turbine has a mildly better performance at low tip speed ratios (1–4.25) where the rotor is deviated from the designed operating TSR and the blade is partly or fully stalled.

Keywords: BEM; CIRCLE; Power coefficient; RANS; Surface curvature effect; Tidal turbine (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-981-32-9531-5_8

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DOI: 10.1007/978-981-32-9531-5_8

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