A fast and accurate method to predict 2D and 3D aerodynamic boundary layer flows

The Science of Making Torque from Wind 2012

Bijleveld, H.A.^1 ; Veldman, A.E.P.^2

ECN Wind Energy, PO Box 1, Petten

1755 ZG, Netherlands^1

Johann Bernoulli Institute of Mathematics and Computing Science, University of Groningen, PO Box 407, Groningen

9700 AK, Netherlands^2

关键词: 3D aerodynamics;    Design method;    Eigenvalues;    Experimental values;    Interaction methods;    Offshore winds;    Quasi-simultaneous;    Rotating flow;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/555/1/012010/pdf
DOI  :  10.1088/1742-6596/555/1/012010

来源: IOP

【 摘 要 】

A quasi-simultaneous interaction method is applied to predict 2D and 3D aerodynamic flows. This method is suitable for offshore wind turbine design software as it is a very accurate and computationally reasonably cheap method. This study shows the results for a NACA 0012 airfoil. The two applied solvers converge to the experimental values when the grid is refined. We also show that in separation the eigenvalues remain positive thus avoiding the Goldstein singularity at separation. In 3D we show a flow over a dent in which separation occurs. A rotating flat plat is used to show the applicability of the method for rotating flows. The shown capabilities of the method indicate that the quasi-simultaneous interaction method is suitable for design methods for offshore wind turbine blades.