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ECN publication
Title:
Final results of the EU JOULE projects "dynamic inflow"
 
Author(s):
Schepers, J.G.; Snel, H.
 
Published by: Publication date:
ECN 1995
 
ECN report number: Document type:
ECN-RX--95-062 Other
 
Number of pages: Full text:
11 Download PDF  

Abstract:
Within the European Union JOULE 1 and JOULE 2 programs, two jointresearch projects were carried out concerning dynamic inflow effects. These effects describe the wake induced unsteadiness and non-uniformity of the flow in the rotor-plane. Aim of the project was the definition and implementation of engineering models within the current state-of-the-art computer codes for dynamic load calculations. These models have been qualified by means of comparison with both existing sophisticated models (dynamic vortex wake calculations) and experiments on turbines with a large range of rotor diameters. Important dynamic inflow effects were found at fast pitching transients and at yawed flow conditions. The effects were predicted well with the newly developed engineering methods. 12 figs., 3 refs.


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