Conference paper · Journal article
Predicting the Influence of Surface Protuberance on the Aerodynamic Characteristics of a NACA 633-418: Paper
Leading Edge Roughness (LER) has become a critical challenge for wind turbine operators, often reducing the energy production of their turbines. LER has not yet been systematically categorized, and the transfer function between height/extent of roughness and the aerodynamic performance has not been established.
A common method for emulating LER is to use zigzag tape or distributed sand grain roughness in a wind tunnel. This paper contains 2D and 3D CFD simulations and wind tunnel tests with zigzag tape on a NACA 633-418 airfoil, to evaluate the changes in aerodynamic characteristics. Because 3D CFD requires a vast amount of computing power, it is investigated if 2D simulation gives a sufficient level of accuracy.
Language: | English |
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Publisher: | IOP Publishing |
Year: | 2018 |
Pages: | 022008 |
Proceedings: | The Science of Making Torque from Wind 2018 |
ISSN: | 17426596 and 17426588 |
Types: | Conference paper and Journal article |
DOI: | 10.1088/1742-6596/1037/2/022008 |
ORCIDs: | Sørensen, Niels N. and Bak, Christian |