Enhanced wind-farm performance using windbreaks

Luoqin Liu*, Richard J. A. M. Stevens*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

The flow speedup generated by windbreaks can be used to increase the power production of wind turbines. However, due to the increased drag imposed by the windbreaks, their use in large wind turbine arrays has been questioned. We use large eddy simulations to show that windbreaks can increase the power production of large wind farms. A crucial finding is that windbreaks in a wind farm should be much lower than in the single-turbine case. In fact, the optimal windbreak for an isolated turbine can reduce wind-farm performance. The optimal windbreak height in a wind farm namely depends on the right balance between the flow speedup over the windbreak and the drag imposed by all windbreaks in the farm. The increased performance is a result of the favorable total pressure flux created by the windbreaks.
Original languageEnglish
Article number074611
JournalPhysical review fluids
Volume6
Issue number7
DOIs
Publication statusPublished - 30 Jul 2021

Keywords

  • wind energy
  • wind turbine
  • wind farm
  • renewable energy
  • fluid mechanics
  • fluid dynamics
  • turbulence
  • large eddy simulations
  • Computational fluid dynamic
  • simulation

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