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

In: Transactions on Engineering Technologies

Author

Listed:
  • 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)

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.

Suggested Citation

  • Kaiming Ai & Eldad Avital & Xiang Shen & Abdus Samad & Nithya Venkatesan, 2019. "The Surface Curvature Effect on Performance of a Laboratory Scale Tidal Turbine," Springer Books, in: Sio-Iong Ao & Len Gelman & Haeng Kon Kim (ed.), Transactions on Engineering Technologies, chapter 0, pages 101-113, Springer.
    • Handle: RePEc:spr:sprchp:978-981-32-9531-5_8
    DOI: 10.1007/978-981-32-9531-5_8
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