Articles | Volume 10, issue 7
https://doi.org/10.5194/wes-10-1329-2025
https://doi.org/10.5194/wes-10-1329-2025
Research article
 | 
10 Jul 2025
Research article |  | 10 Jul 2025

A scaling methodology for the Hybrid-Lambda Rotor – characterization and validation in wind tunnel experiments

Daniel Ribnitzky, Vlaho Petrović, and Martin Kühn

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Cited articles

Bayati, I., Belloli, M., Bernini, L., Mikkelsen, R., and Zasso, A.: On the aero-elastic design of the DTU 10 MW wind turbine blade for the LIFES50+ wind tunnel scale model, J. Phys. Conf. Ser., 753, 022028, https://doi.org/10.1088/1742-6596/753/2/022028, 2016. a
Berger, F.: Wind tunnel experiments with a model turbine: Dynamic inflow investigation, Dissertation, https://oops.uni-oldenburg.de/id/eprint/5516 (last access: 1 July 2025), 2022. a, b
Berger, F., Kröger, L., Onnen, D., Petrović, V., and Kühn, M.: Scaled wind turbine setup in a turbulent wind tunnel, J. Phys. Conf. Ser., 1104, 012026, https://doi.org/10.1088/1742-6596/1104/1/012026, 2018. a, b, c
Berger, F., Onnen, D., Schepers, G., and Kühn, M.: Experimental analysis of radially resolved dynamic inflow effects due to pitch steps, Wind Energ. Sci., 6, 1341–1361, https://doi.org/10.5194/wes-6-1341-2021, 2021. a, b
Bottasso, C. L. and Campagnolo, F.: Wind Tunnel Testing of Wind Turbines and Farms, in: Handbook of Wind Energy Aerodynamics, edited by: Stoevesandt, B., Schepers, G., Fuglsang, P., and Yuping, S., Springer, https://doi.org/10.1007/978-3-030-05455-7_54-1, 2021. a, b, c
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In this paper, the Hybrid-Lambda Rotor is scaled to wind tunnel size and validated in wind tunnel experiments. The objectives are to derive a scaling methodology, to investigate the influence of the steep gradients of axial induction along the blade span, and to characterize the near wake. The study reveals complex three-dimensional flow patterns for blade designs with non-uniform loading, and it can offer new inspirations when solving other scaling problems for complex wind turbine systems.
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