Smart rotor

Controlling dynamic stall by means of an actuated flap

Conference paper (2016)

Authors

M. Raiola Carlos III University of Madrid
S Discetti Carlos III University of Madrid
A. Ianiro Carlos III University of Madrid
D. Ragni Wind Energy - Aerospace Engineering
G.A.M. van Kuik Wind Energy - Aerospace Engineering
J.W. van Wingerden Team Raf Van de Plas - Mechanical, Maritime and Materials Engineering
Research Group
Wind Energy (Aerospace Engineering) (TU Delft)
More Info
expand_more

Published Date

2016

Language

English

Reuse Rights

Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.

Faculty

Aerospace Engineering

Department

Flow Physics and Technology

Research Group

Wind Energy

Abstract

Dynamic stall limits the operative life of rotors, due to a periodic occurrence of force and moment peaks that can lead to blade structural-failure. The aim of this study is to investigate the possibility of controlling cyclic forces on wind turbine blades by means of Trailing Edge Flaps. The periodic motion of a rotor blade is reproduced by a 2D wing pitching and plunging in a free-stream flow at 푹풆=ퟏ.ퟑ× ퟏퟎퟓ. The wing is equipped with 50 pressure taps able to provide with a time-resolved distribution of the pressure on the wing. A trailing-edge flap is installed in the wing and actuated with respect to the wing motion. Flap actuations in phase opposition to the rotor motion are found to maximize the lift integral over the period while minimizing the load fluctuations over time.