Conference paper · Journal article
A comparison of wind turbine blade parametrization schemes for planform design optimization
Wind Energy Systems Division, Department of Wind and Energy Systems, Technical University of Denmark1
System Engineering and Optimization, Wind Energy Systems Division, Department of Wind and Energy Systems, Technical University of Denmark2
Department of Wind and Energy Systems, Technical University of Denmark3
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.
| Language: | English |
|---|---|
| Publisher: | IOP Publishing |
| Year: | 2022 |
| Pages: | 042037 |
| Proceedings: | The Science of Making Torque from Wind 2022European Academy of Wind Energy : The Science of Making Torque from Wind |
| Series: | Journal of Physics: Conference Series |
| ISSN: | 17426588 and 17426596 |
| Types: | Conference paper and Journal article |
| DOI: | 10.1088/1742-6596/2265/4/042037 |
| ORCIDs: | Iori, Jenna |
