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TECHNICAL PAPERS

Summary of the Delft University Wind Turbine Dedicated Airfoils

[+] Author and Article Information
W. A. Timmer, R. P. J. O. M. van Rooij

Delft University Wind Energy Research Institute, Faculty of Civil Engineering and Geosciences, Stevinweg 1, 2628 CN Delft, The Netherlands

J. Sol. Energy Eng 125(4), 488-496 (Nov 26, 2003) (9 pages) doi:10.1115/1.1626129 History: Received February 27, 2003; Revised July 07, 2003; Online November 26, 2003
Copyright © 2003 by ASME
Topics: Wind turbines
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References

Figures

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A series of DU airfoils for a pitch regulated 55 m diameter rotor
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The predicted DU 91-W2-250 characteristics with two versions of XFOIL and with RFOIL
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The predicted and measured effect of rotation on the pressure distribution of the 30% span section of a rotating blade
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The model of airfoil DU 97-W-300 in the LST test section seen from inside the contraction. The wake rake is in the back.
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Measured pressure distributions for DU 91-W2-25 at R=3×106. Transition free.
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Measured airfoil performance of DU 91-W2-250 at R=3×106
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The airfoil shapes of DU 91-W2-250 and DU 93-W-210
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The effect of Reynolds number on the maximum lift-drag ratio and maximum lift coefficient of airfoil DU 93-W-210
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The effect of a flap deflection on the performance of DU 95-W-180 at R=3×106
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Measured pressure distributions of airfoil DU 96-W-180 at R=3×106. Transition free.
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The effect of zigzag tape at x/c=0.05 on the performance of DU 96-W-180
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Measured pressure distributions for airfoil DU 97-W-300 at R=3×106. Transition free.
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The effect of zigzag tape on the characteristics of DU 97-W-300 at R=3×106
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The measured and calculated performance of DU 97-W-300 at R=3×106
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The RFOIL predicted effect of rotation on DU 97-W-300 in the transition free and fixed condition
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The effect of 1%c and 2%c Gurney flaps on the performance of DU 93-W-210
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Sketch of the Gurney flap and some wedges applied to the trailing edge of DU 93-W-210
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The effect of wedge upstream length on the (l/d)max and Cl,max of DU 93-W-210
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The effect on performance of thickness and location of a trip wire located on the leading edge of DU 93-W-210
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Sketch of the vortex generators used during most wind tunnel tests. Dimensions in mm.
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Effect of vortex generators on the performance of DU 97-W-300 with and without zigzag tape
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The lift curves of two DU airfoils showing leading edge separation
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Correlation of deep-stall angle with leading edge thickness for a number of wind turbine airfoils

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