ECN publication
ROTORFLOW: A quasi-simultaneous interaction method for the prediction of three-dimensional aerodynamic flow over wind turbine blades
Bijleveld, H.A.; Veldman, A.E.P.
Published by: Publication date:
ECN Wind Energy 29-11-2010
ECN report number: Document type:
ECN-M--10-092 Conference Paper
Number of pages: Full text:
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Presented at: The Science of Making Torque from Wind, Heraklion, Crete, Greece, 28-30 juni 2010.

For the numerical prediction of the aerodynamic forces on wind turbine blades, a viscous-inviscid interaction method is applied. From a discussion on the interaction methods, focussing on their ability to simulate separated flows, it follows that the quasi-simultaneous interaction method is the most suitable. The method employed here uses only the local influence of the external flow, resulting in an algebraic expression for the interaction-law equation. The method is applied to a model problem for a three-dimensional steady, incompressible, turbulent flow over a flat plate. For attached flow the quasi-simultaneous method converges to the same solution as a flow solver using a direct interaction method.

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