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conference paper

Interaction between large wind farms and the atmospheric boundary layer

Porte-Agel, Fernando  
•
Lu, Hao  
•
Wu, Yu-Ting  
Bai, Y
•
Wang, J
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2012
Procedia IUTAM
23rd International Congress of Theoretical and Applied Mechanics (ICTAM)

Accurate prediction of atmospheric boundary layer (ABL) flow and its interactions with wind turbines is of great importance for optimizing the design and efficiency of wind farms. This study first focuses on recent efforts to develop and validate a large-eddy simulation (LES) framework for wind-energy applications. The subgrid-scale turbulent fluxes of momentum and heat are parameterized using tuning-free dynamic models. The turbine-induced forces are parameterized using two types of models: an actuator disk model that allows for non-uniform force distribution and includes rotational effects, and an actuator line model. The LES framework is validated against wind-tunnel measurements collected inside and above a large model wind farm. Further, this framework is used to study wind-farm effects. Comparison of simulations of flow through both aligned and staggered wind farms shows important effects of farm layout on the flow structure and wind-turbine performance. We also investigate the impacts of wind farms on a stable ABL and a convective ABL.

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Type
conference paper
DOI
10.1016/j.piutam.2014.01.026
Web of Science ID

WOS:000345443700015

Author(s)
Porte-Agel, Fernando  
•
Lu, Hao  
•
Wu, Yu-Ting  
Editors
Bai, Y
•
Wang, J
•
Fang, D
Date Issued

2012

Published in
Procedia IUTAM
Total of pages

12

Volume

10

Start page

307

End page

318

Subjects

atmospheric turbulence

•

large-eddy simulation

•

wind turbine

Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
WIRE  
Event nameEvent placeEvent date
23rd International Congress of Theoretical and Applied Mechanics (ICTAM)

Beijing, China

August 19-24, 2012

Available on Infoscience
December 30, 2014
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/109519
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