Please use this identifier to cite or link to this item:
Title: Influence of the conservative rotor loads on the near wake of a wind turbine
Authors: Herraez, Ivan
Micallef, Daniel
van Kuik, Gijs
Keywords: Wind turbines -- Aerodynamics
Wakes (Aerodynamics)
Turbines -- Blades
Wind turbines -- Rotors
Issue Date: 2017
Publisher: IOP Publishing Ltd.
Citation: Herraez, I., Micallef, D., & Van Kuik, G.A.M. (2017). Influence of the conservative rotor loads on the near wake of a wind turbine. Journal of Physics: Conference Series, 854 (1), 1-10.
Abstract: The presence of conservative forces on rotor blades is neglected in the blade element theory and all the numerical methods derived from it (like e.g. the blade element momentum theory and the actuator line technique). This might seem a reasonable simplification of the real flow of rotor blades, since conservative loads, by definition, do not contribute to the power conversion. However, conservative loads originating from the chordwise bound vorticity might affect the tip vortex trajectory, as we discussed in a previous work. In that work we also hypothesized that this effect, in turn, could influence the wake induction and correspondingly the rotor performance. In the current work we extend a standard actuator line model in order to account for the conservative loads at the blade tip. This allows to isolate the influence of conservative forces from other effects. The comparison of numerical results with and without conservative loads enables to confirm qualitatively their relevance for the near wake and the rotor performance. However, an accurate quantitative assessment of the effect still remains out of reach due to the inherent uncertainty of the numerical model.
Appears in Collections:Scholarly Works - FacBenED

Files in This Item:
File Description SizeFormat 
Influence of the conservative rotor loads on the near wake of a wind turbine.pdf248.04 kBAdobe PDFView/Open

Items in OAR@UM are protected by copyright, with all rights reserved, unless otherwise indicated.