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On the accuracy of predicting wind-farm blockage

Author

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  • Meyer Forsting, Alexander R.
  • Navarro Diaz, Gonzalo P.
  • Segalini, Antonio
  • Andersen, Søren J.
  • Ivanell, Stefan

Abstract

To assess the uncertainty in blockage quantification, this study proposes a comparison of farm blockage predictions from wind-tunnel experiments, Reynolds Averaged Navier–Stokes based simulations using multiple numerical setups, and analytical models. The influence of the numerical setup is demonstrated to be small if a consistent definition of blockage (able to sort out systematic errors) is used. The effect of domain confinement and turbulence intensity is investigated assessing their range of variability. Different analytical models performed similarly in comparison to the numerical data, demonstrating the best accuracy for realistic spacing between the turbines and supporting their use as reliable engineering tools.

Suggested Citation

  • Meyer Forsting, Alexander R. & Navarro Diaz, Gonzalo P. & Segalini, Antonio & Andersen, Søren J. & Ivanell, Stefan, 2023. "On the accuracy of predicting wind-farm blockage," Renewable Energy, Elsevier, vol. 214(C), pages 114-129.
    • Handle: RePEc:eee:renene:v:214:y:2023:i:c:p:114-129
    DOI: 10.1016/j.renene.2023.05.129
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    References listed on IDEAS

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    1. Mahdi Abkar & Fernando Porté-Agel, 2013. "The Effect of Free-Atmosphere Stratification on Boundary-Layer Flow and Power Output from Very Large Wind Farms," Energies, MDPI, vol. 6(5), pages 1-24, April.
    2. McTavish, S. & Feszty, D. & Nitzsche, F., 2013. "A study of the performance benefits of closely-spaced lateral wind farm configurations," Renewable Energy, Elsevier, vol. 59(C), pages 128-135.
    3. Keane, Aidan & Nisbet, Iain & Calvo, Gabriele & Pickering, George & Tulloch, Jake & More, Graham & Koronka, Neil, 2022. "Wind farm cumulative induction zone effect and the impact on energy yield estimation," Renewable Energy, Elsevier, vol. 181(C), pages 1209-1222.
    4. James Bleeg & Mark Purcell & Renzo Ruisi & Elizabeth Traiger, 2018. "Wind Farm Blockage and the Consequences of Neglecting Its Impact on Energy Production," Energies, MDPI, vol. 11(6), pages 1-20, June.
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