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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.
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author
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
pages
14 pages
publisher
Multidisciplinary Digital Publishing Institute (MDPI)
ISSN
2504-186X
DOI
10.3390/ijtpp4010004
language
English
LU publication?
yes
id
3bf57ac9-dca6-4cd8-808f-a6dce18354e8
date added to LUP
2019-04-01 17:42:49
date last changed
2019-04-03 13:59:48
@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},
  keyword      = {Ice throw,Six degrees of freedom,Wind turbine},
  language     = {eng},
  number       = {1},
  pages        = {14},
  publisher    = {Multidisciplinary Digital Publishing Institute (MDPI)},
  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},
  volume       = {4},
  year         = {2019},
}