Wind Energy Science
Wind Energy Science
WES
Articles | Volume 8, issue 3
Articles | Volume 8, issue 3
https://doi.org/10.5194/wes-8-341-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-8-341-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 8, issue 3
Research article
 | 
15 Mar 2023
Research article |  | 15 Mar 2023

Numerical simulations of ice accretion on wind turbine blades: are performance losses due to ice shape or surface roughness?

Francesco Caccia and Alberto Guardone

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Short summary
Ice roughness deteriorates wind turbine aerodynamics. We have shown numerically that this also occurs when complex ice shapes are present on the leading edge, as long as the blade's wet region extends beyond the ice shape itself and roughness elements are high enough. Such features are typical of icing events on wind turbines but are not captured by current icing simulation tools. Future research should focus on correctly computing both the wet region of the blade and the roughness height.
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