Articles | Volume 7, issue 4
https://doi.org/10.5194/wes-7-1471-2022
https://doi.org/10.5194/wes-7-1471-2022
Research article
 | 
18 Jul 2022
Research article |  | 18 Jul 2022

CFD-based curved tip shape design for wind turbine blades

Mads H. Aa. Madsen, Frederik Zahle, Sergio González Horcas, Thanasis K. Barlas, and Niels N. Sørensen

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Cited articles

Aju, E., Suresh, D., and Jin, Y.: The influence of winglet pitching on the performance of a model wind turbine: Aerodynamic loads, rotating speed, and wake statistics, Energies, 13, 5199, https://doi.org/10.3390/en13195199, 2020. a, b, c, d, e
Andersen, B., Bak, C., Aagaard Madsen, H., and Søndergård, B.: Måling og beregning af aerodynamisk støj samt optimering af vingetipper på vindmøller, Tech. rep., https://findit.dtu.dk/en/catalog/58945f798040e5ab4503f864 (last access: 3 July 2022), 2001. a, b
Aravindkumar. N: Analysis of the Small Wind Turbine Blade with and Without Winglet, International Journal of Engineering Research and Applications 4, 239–243, 2014. a, b, c
Ariffudin, M., Zawawi, F., Kamar, H., and Kamsah, N.: Effectiveness of blade tip on low speed horizontal axis wind turbine performance, Jurnal Teknologi, 78, 31–39, https://doi.org/10.11113/jt.v78.9582, 2016. a, b, c, d
Bak, D., Andersen, P., Bertagnolio, F., Buhl, T., Gaunaa, M., Hansen, A., Hansen, M., Johansen, J., Larsen, G., Larsen, T., Madsen, H., Markou, H., Rasmussen, F., Sørensen, N., Thomsen, K., Hansen, K., Hansen, M., Mikkelsen, R., Shen, W., Sørensen, J., Troldborg, N., and Øye, S.: Research in aeroelasticity EFP-2006, Risø National Laboratory, Denmark, Forskningscenter Risoe, Risoe-R No. 1611(EN), https://backend.orbit.dtu.dk/ws/files/7703181/ris_r_1611.pdf (last access: 3 July 2022), 2007. a, b
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Short summary
This work presents a shape optimization framework based on computational fluid dynamics. The design framework is used to optimize wind turbine blade tips for maximum power increase while avoiding that extra loading is incurred. The final results are shown to align well with related literature. The resulting tip shape could be mounted on already installed wind turbines as a sleeve-like solution or be conceived as part of a modular blade with tips designed for site-specific conditions.
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