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- Title
Experimental study of the wake interaction between two vertical axis wind turbines.
- Authors
Huang, Ming; Vijaykumar Patil, Yugandhar; Sciacchitano, Andrea; Ferreira, Carlos
- Abstract
Wakes and wake interactions in wind turbine arrays diminish energy output and raise the risk of structural fatigue; hence, comprehending the features of rotor–wake interactions is of practical relevance. Previous studies suggest that vertical axis wind turbines (VAWTs) can facilitate a quicker wake recovery. This study experimentally investigates the rotor–wake and wake–wake interaction of VAWTs; different pitch angles of the blades of the upwind VAWT are considered to assess the interactions for different wake deflections. With stereoscopic particle image velocimetry, the wake interactions of two VAWTs are analysed in nine distinct wake deflection and rotor location configurations. The time‐average velocity fields at several planes upwind and downwind from the rotors are measured. Additionally, time‐average loads on the VAWTs are measured via force balances. The results validate the rapid wake recovery and the efficacy of wake deflection, which increases the available power in the second rotor.
- Subjects
VERTICAL axis wind turbines; PARTICLE image velocimetry; ROTORCRAFT; WIND turbines
- Publication
Wind Energy, 2023, Vol 26, Issue 11, p1188
- ISSN
1095-4244
- Publication type
Article
- DOI
10.1002/we.2863