The k-ε-fP model applied to double wind turbine wakes using different actuator disk force methods

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Abstract

The newly developed k-ε-fP  eddy viscosity model is applied to double wind turbine wake configurations in a neutral atmospheric boundary layer, using a Reynolds-Averaged Navier–Stokes solver. The wind turbines are represented by actuator disks. A proposed variable actuator disk force method is employed to estimate the power production of the interacting wind turbines, and the results are compared with two existing methods: a method based on tabulated airfoil data and a method based on the axial induction from 1D momentum theory. The proposed method calculates the correct power, while the other two methods overpredict it. The results of the k-ε-feddy viscosity model are also compared with the original k-ε eddy viscosity model and large-eddy simulations. Compared to the large-eddy simulations-predicted velocity and power deficits, the k-ε-fis superior to the original k-ε model. Copyright © 2014 John Wiley & Sons, Ltd.
Original languageEnglish
JournalWind Energy
Volume18
Issue number12
Pages (from-to)2223–2240
ISSN1095-4244
DOIs
Publication statusPublished - 2015

Keywords

  • k -ε eddy viscosity model
  • Wind turbine wake interaction
  • Actuator disk
  • CFD
  • RANS
  • LES

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