Abstract
A new Blade Element Momentum (BEM) model is proposed for yawed wind turbine flows. This method differs from conventional methods in the use of correction factors for the induction. A set of results from potential flow methods is used to define a table of corrections over a wide range of operating conditions and locations within the flow field. The potential flow methods account for the distribution of vorticity in the wake. Applying the resulting corrections give better accuracy than conventional BEM methods. By generating the correction results a priori, the efficiency of the BEM method is preserved. The accuracy of this method and the conventional axial momentum based BEM method are evaluated by comparing results to that of the MEXICO experiment.
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