Abstract
This work compares nodal, spline and interpolation parametrization schemes for wind turbine blade planform design. The comparison is done on a power coefficient maximization problem, where the aerodynamic properties of the blade are computed using the Blade Element Method. The problem is solved using a gradient-based interior-point method with analytic gradients. We show the variation in planform design for each parametrization scheme when the degrees of freedom of the parametrization varies. We compare how the power coefficient converges with increasing degrees of freedom for each scheme. Our results shows that the B´ezier spline, the Piecewise Cubic Hermite Interpolation Polynomial (PCHIP) and Lagrange interpolation schemes present the best grid convergence out of all studied schemes.
| Original language | English |
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| Title of host publication | Floating Wind; Systems Design and Multi-Fidelity/Multi-Disciplinary Modelling; Future Wind; Smaller Wind Turbines |
| Number of pages | 11 |
| Publisher | IOP Publishing |
| Publication date | 2022 |
| Article number | 042037 |
| DOIs | |
| Publication status | Published - 2022 |
| Event | The Science of Making Torque from Wind 2022 - Delft, Netherlands Duration: 1 Jun 2022 → 3 Jun 2022 Conference number: 9 https://www.torque2022.eu/ |
Conference
| Conference | The Science of Making Torque from Wind 2022 |
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| Number | 9 |
| Country/Territory | Netherlands |
| City | Delft |
| Period | 01/06/2022 → 03/06/2022 |
| Internet address |
| Series | Journal of Physics: Conference Series |
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| Number | 4 |
| Volume | 2265 |
| ISSN | 1742-6596 |