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