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ECN publication
Title:
Numerical Investigation on Performance of Innovative Wind Turbine Blades for Loads Reduction
 
Author(s):
Maggio, T.; Grasso, F.
 
Published by: Publication date:
ECN Wind Energy 25-3-2011
 
ECN report number: Document type:
ECN-M--11-036 Conference Paper
 
Number of pages: Full text:
8 Download PDF  

Abstract:
There is an increased interest in the study of swept-blade wind turbine rotors in order to increase energy capture without an increase in the turbine loads; at the same time, a swept-blade geometry is less sensitive to wind gusts and so, more tolerant for fatigue loads. The present work is focused on a numerical investigation about the performances of swept-blade wind turbine rotors. A code developed at Energy Centre of the Netherlands, based on the generalized lifting line theory and coupled with a free wake method, was used. The code has been extended in order to take into account the deformation of the blade due to torsion and bending moments. After the code is presented and the extensions are explained, a parametric analysis is performed on different blade shapes and then, the results are illustrated and discussed.


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