Probabilistic Design of Airfoils for Horizontal Axis Wind Turbines

R. Pereira, Gaël de Oliveira, W. A. Timmer, E. Quaeghebeur

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


We describe a probabilistic approach to design airfoils for wind energy applications. An analytical expression is derived for the probability of perturbations to the operational blade-section angle of attack. It includes the combined influence of wind shear, yaw-misalignment, and turbulence intensity. The theoretical fluctuations in angle of attack are validated against an aero-structural simulation of a 10 MW horizontal axis wind turbine, operating under different inflow conditions. Finally we incorporate the probabilistic approach into a multi-objective airfoil optimization problem, which is solved with a genetic algorithm. The results illustrate the compromise between airfoil performance for a specific angle of attack and robustness of airfoil performance over a large range of angle of attack fluctuations.

Original languageEnglish
Article number022042
JournalJournal of Physics: Conference Series
Issue number2
Publication statusPublished - 19 Jun 2018
Externally publishedYes
Event7th Science of Making Torque from Wind, TORQUE 2018 - Milan, Italy
Duration: 20 Jun 201822 Jun 2018

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