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Numerical modelling of the ice throw from wind turbines

Szász, Robert-Zoltán LU ; Leroyer, Alexandre and Revstedt, Johan LU (2019) In International Journal of Turbomachinery, Propulsion and Power 4(1).
Abstract
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.
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ice throw, Six degrees of freedom, Wind turbine
in
International Journal of Turbomachinery, Propulsion and Power
volume
4
issue
1
article number
ijtpp4010004
publisher
MDPI AG
external identifiers
  • scopus:85078728044
ISSN
2504-186X
DOI
10.3390/ijtpp4010004
project
Computations of ice throw/fall with realistic ice shapes
language
English
LU publication?
yes
id
3bf57ac9-dca6-4cd8-808f-a6dce18354e8
date added to LUP
2019-04-01 17:42:49
date last changed
2022-04-25 22:14:11
@article{3bf57ac9-dca6-4cd8-808f-a6dce18354e8,
  abstract     = {{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.}},
  author       = {{Szász, Robert-Zoltán and Leroyer, Alexandre and Revstedt, Johan}},
  issn         = {{2504-186X}},
  keywords     = {{Ice throw; Six degrees of freedom; Wind turbine}},
  language     = {{eng}},
  number       = {{1}},
  publisher    = {{MDPI AG}},
  series       = {{International Journal of Turbomachinery, Propulsion and Power}},
  title        = {{Numerical modelling of the ice throw from wind turbines}},
  url          = {{http://dx.doi.org/10.3390/ijtpp4010004}},
  doi          = {{10.3390/ijtpp4010004}},
  volume       = {{4}},
  year         = {{2019}},
}