Wind Farm Wakes and Farm-to-Farm Interactions: Lidar and Wind Tunnel Tests: Preprint

W. Ahmed, C. Moss, S. Roy, M. Solari, M. Puccioni, K. Panthi, Patrick Moriarty, G. Iungo

Research output: Contribution to conferencePaper


Recent experimental and numerical evidence has shown that the cumulative wake generated from the overlapping of multiple wakes within a wind farm could reduce power performance and enhance fatigue loads of wind turbines installed in neighboring downstream wind farms and may also extend up to distances one order of magnitude larger than those typically considered for intra-farm wake interactions. Similar to individual wind turbine wakes, wind farm wakes have a velocity deficit and added turbulence intensity, both affected by the turbine rotor thrust forces and the incoming turbulence intensity. Therefore, the evolution of wind farm wakes will vary for different operational and atmospheric conditions. In this paper, lidar measurements collected during the American WAKE experimeNt (AWAKEN) and wind tunnel tests of wind farms reproduced by porous disks are leveraged to investigate wind farm wakes.
Original languageAmerican English
Number of pages13
StatePublished - 2024
EventThe Science of Making Torque from Wind - Florence, Italy
Duration: 29 May 202431 May 2024


ConferenceThe Science of Making Torque from Wind
CityFlorence, Italy

NREL Publication Number

  • NREL/CP-5000-88707


  • farm-to-farm interactions
  • lidars
  • wakes
  • wind farms
  • wind tunnel


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