Abstract Vertical axis wind turbine blades undergo dynamic stall due to the large angle of attack variation they experience during a turbine rotation. Particle image velocimetry on a pitching and surging airfoil was used to perform time resolved measurements at blade Reynolds numbers near turbine operating conditions of . These experiments were compared to simulations performed in the rotating turbine frame as well as the linear, experimental, frame at a Reynolds number of to investigate rotational and Reynolds number effects. The flow was shown to develop similarly prior to separation, but the kinematics of vortices shed post separation were reference frame dependent.
Leading Edge Vortex Development on Pitching and Surging Airfoils: A Study of Vertical Axis Wind Turbines
Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015) ; 10 ; 581-587
Springer Proceedings in Physics ; 185 , 10
2016-01-01
7 pages
Article/Chapter (Book)
Electronic Resource
English
Aerodynamics of Darrieus Wind Turbines Airfoils: The Impact of Pitching Moment
Online Contents | 2017
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