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Magnus type wind turbines: Prospectus and challenges in design and modelling

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  • Sedaghat, Ahmad

Abstract

One of attracting concepts has been the use of Magnus effect to produce lift from rotating cylinders in various engineering applications. With emerging innovative Magnus type wind turbine technology, it is important to determine power performance and characteristics of such generators as correctly as possible. As stressed by Seifert, there is lack of theories in design and modelling of using Magnus force in engineering which is particularly noticed for the horizontal axis Magnus type wind turbines. In this study, the importance of research carried out for determining lift and drag forces of rotating circular cylinders is highlighted and reviewed. Then, the theoretical methods used in designing commercial aerofoil type wind turbines are extended to apply on the Magnus types. New formulation is presented for potential flow around the Magnus blades. The blade element momentum (BEM) theory is formulated for the Magnus wind turbines. A cubic function for angular induction factor is found from the BEM analysis which is strongly dependant on the drag to lift ratio. It is also observed that the relative wind incidence angle and the local power coefficient of the Magnus cylinder are independent functions of spin ratio.

Suggested Citation

  • Sedaghat, Ahmad, 2014. "Magnus type wind turbines: Prospectus and challenges in design and modelling," Renewable Energy, Elsevier, vol. 62(C), pages 619-628.
    • Handle: RePEc:eee:renene:v:62:y:2014:i:c:p:619-628
    DOI: 10.1016/j.renene.2013.08.029
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    Citations

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    Cited by:

    1. Sedaghat, Ahmad & Samani, Iman & Ahmadi-Baloutaki, Mojtaba & El Haj Assad, M. & Gaith, Mohamed, 2015. "Computational study on novel circulating aerofoils for use in Magnus wind turbine blades," Energy, Elsevier, vol. 91(C), pages 393-403.
    2. Toni Pujol & Albert Massaguer & Eduard Massaguer & Lino Montoro & Martí Comamala, 2018. "Net Power Coefficient of Vertical and Horizontal Wind Turbines with Crossflow Runners," Energies, MDPI, vol. 11(1), pages 1-24, January.
    3. Hcini, Cherif & Abidi, Essia & Kamoun, Badreddine & Afungchui, David, 2017. "A Turbosail profile analysis code based on the panel method," Energy, Elsevier, vol. 118(C), pages 147-155.
    4. Hcini, Cherif & Abidi, Essia & Kamoun, Badreddine & Afungchui, David, 2016. "Numerical prediction for the aerodynamic performance of Turbosail type wind turbine using a vortex model," Energy, Elsevier, vol. 109(C), pages 287-293.
    5. Douak, M. & Aouachria, Z. & Rabehi, R. & Allam, N., 2018. "Wind energy systems: Analysis of the self-starting physics of vertical axis wind turbine," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 1602-1610.
    6. Kazemi, Seyed Ali & Nili-Ahmadabadi, Mahdi & Sedaghat, Ahmad & Saghafian, Mohsen, 2016. "Aerodynamic performance of a circulating airfoil section for Magnus systems via numerical simulation and flow visualization," Energy, Elsevier, vol. 104(C), pages 1-15.

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