Open AccessComparison of turbulence models for the computational fluid dynamics simulation of wind turbine wakes in the atmospheric boundary layer
Author(s) -
Cabezón D.,
Migoya E.,
Crespo A.
Publication year - 2011
Publication title -
wind energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 92
eISSN - 1099-1824
pISSN - 1095-4244
DOI - 10.1002/we.516
Subject(s) - wake , mechanics , turbulence , computational fluid dynamics , turbine , physics , rotor (electric) , turbulence modeling , large eddy simulation , boundary layer , wind speed , planetary boundary layer , classical mechanics , meteorology , thermodynamics , quantum mechanics
ABSTRACT An elliptic computational fluid dynamics wake model based on the actuator disk concept is used to simulate a wind turbine, approximated by a disk upon which a distribution of forces, defined as axial momentum sources, is applied on an incoming non‐uniform shear flow. The rotor is supposed to be uniformly loaded with the exerted forces estimated as a function of the incident wind speed, thrust coefficient and rotor diameter. The model is assessed in terms of wind speed deficit and added turbulence intensity for different turbulence models and is validated from experimental measurements of the Sexbierum wind turbine experiment. The elliptic model is also compared with other wake models in the literature on the basis of parabolic and large eddy simulation approximations. Copyright © 2011 John Wiley & Sons, Ltd.