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A generalized method to extend airfoil polars over the full range of angles of attack

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  • Battisti, Lorenzo
  • Zanne, Luca
  • Castelli, Marco Raciti
  • Bianchini, Alessandro
  • Brighenti, Alessandra

Abstract

The accurate prediction of airfoil polars over the whole range of angles of attack and for different Reynolds numbers is pivotal to ensure an accurate prediction of wind turbine aerodynamic performance. In particular, modeling correctly the deep-stall and post-stall airfoil behavior is essential to reproduce reliable power and thrust curves for high wind conditions, especially as far as stall-controlled wind turbines are concerned. This need is even more urgent in vertical-axis wind turbines, in which the airfoils do experience a continuous variation of the angle of attack, exceeding the stall limit even in normal operating points.

Suggested Citation

  • Battisti, Lorenzo & Zanne, Luca & Castelli, Marco Raciti & Bianchini, Alessandro & Brighenti, Alessandra, 2020. "A generalized method to extend airfoil polars over the full range of angles of attack," Renewable Energy, Elsevier, vol. 155(C), pages 862-875.
    • Handle: RePEc:eee:renene:v:155:y:2020:i:c:p:862-875
    DOI: 10.1016/j.renene.2020.03.150
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    References listed on IDEAS

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    1. Lanzafame, R. & Messina, M., 2012. "BEM theory: How to take into account the radial flow inside of a 1-D numerical code," Renewable Energy, Elsevier, vol. 39(1), pages 440-446.
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    Cited by:

    1. Francesco Papi & Alberto Nocentini & Giovanni Ferrara & Alessandro Bianchini, 2021. "On the Use of Modern Engineering Codes for Designing a Small Wind Turbine: An Annotated Case Study," Energies, MDPI, vol. 14(4), pages 1-23, February.

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