Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

Modeling of the trajectory of ice thrown from a wind turbine

Rocchi, Elena LU (2023) MVKM01 20231
Department of Energy Sciences
Abstract
There is a growing number of wind turbines installed in cold temperature zones as a result of the restricted space for new construction. Due to ice deposition on the turbine blades, the increasing installation of wind turbines in freezing temperature areas presents many challenges: ice accumulation increases weight, unbalances the rotor, diminishes aerodynamic efficiency, and creates safety issues.
This paper attempts to investigate the influence of the velocity magnitude and Reynolds number on aerodynamic forces, given by Drapalik et al., for different ice concretions.
Moreover, it will be examined how the sensitivity of the forces are modified based on different turbulence models through RANS and LES simulations. RANS models included... (More)
There is a growing number of wind turbines installed in cold temperature zones as a result of the restricted space for new construction. Due to ice deposition on the turbine blades, the increasing installation of wind turbines in freezing temperature areas presents many challenges: ice accumulation increases weight, unbalances the rotor, diminishes aerodynamic efficiency, and creates safety issues.
This paper attempts to investigate the influence of the velocity magnitude and Reynolds number on aerodynamic forces, given by Drapalik et al., for different ice concretions.
Moreover, it will be examined how the sensitivity of the forces are modified based on different turbulence models through RANS and LES simulations. RANS models included the SST k-ω, RNG k-ε, Realizable k-ε, and Spalart-Allmaras models, while the WALE SGS model was used for LES simulations to capture small-scale fluid motions.
Lastly, the ice trajectories were evaluated based on the in-house ballistic model, while considering different resolution of the aerodynamic force database acting on the ice. (Less)
Please use this url to cite or link to this publication:
author
Rocchi, Elena LU
supervisor
organization
course
MVKM01 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Ice thrown - Ice fall - RANS - LES - CFD - simulations - ballistic model
report number
LUTMDN/TMHP-23/5525-SE
ISSN
0282-1990
language
English
id
9124602
date added to LUP
2023-06-22 09:30:30
date last changed
2023-06-22 09:30:30
@misc{9124602,
  abstract     = {{There is a growing number of wind turbines installed in cold temperature zones as a result of the restricted space for new construction. Due to ice deposition on the turbine blades, the increasing installation of wind turbines in freezing temperature areas presents many challenges: ice accumulation increases weight, unbalances the rotor, diminishes aerodynamic efficiency, and creates safety issues.
This paper attempts to investigate the influence of the velocity magnitude and Reynolds number on aerodynamic forces, given by Drapalik et al., for different ice concretions.
Moreover, it will be examined how the sensitivity of the forces are modified based on different turbulence models through RANS and LES simulations. RANS models included the SST k-ω, RNG k-ε, Realizable k-ε, and Spalart-Allmaras models, while the WALE SGS model was used for LES simulations to capture small-scale fluid motions.
Lastly, the ice trajectories were evaluated based on the in-house ballistic model, while considering different resolution of the aerodynamic force database acting on the ice.}},
  author       = {{Rocchi, Elena}},
  issn         = {{0282-1990}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Modeling of the trajectory of ice thrown from a wind turbine}},
  year         = {{2023}},
}