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Numerical Modelling of the Ice Throw from Wind Turbines

Department of Energy Sciences, Lund University, PO. Box 118, 22100 Lund, Sweden
ISAE-ENSMA, Mécanique et Aérotechnique, 86960 Chasseneuil-du-Poitou, France
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in Proceedings of the Conference on Modelling Fluid Flow, CMFF18, 2018.
Int. J. Turbomach. Propuls. Power 2019, 4(1), 4;
Received: 12 December 2018 / Revised: 6 February 2019 / Accepted: 11 February 2019 / Published: 26 February 2019
Ice throw is a significant risk factor in the vicinity of wind turbines located in cold climate areas. We present a method to estimate the ice chunk trajectories. First, similar to the common practice, only translation is accounted for and the object trajectory is determined by gravity and the aerodynamic drag force. The sensitivity of the trajectories to the launch positions, wind speed, turbine rotation and aerodynamic drag is assessed. Next, trajectory computations with six-degree-of-freedom motion are presented. The required aerodynamic forces and moments are precomputed using CFD. The results indicate that object rotation might be non-negligible when higher accuracy is needed for the trajectory estimates. View Full-Text
Keywords: ice throw; wind turbine; six degrees of freedom ice throw; wind turbine; six degrees of freedom
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MDPI and ACS Style

Szász, R.-Z.; Leroyer, A.; Revstedt, J. Numerical Modelling of the Ice Throw from Wind Turbines. Int. J. Turbomach. Propuls. Power 2019, 4, 4.

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