Investigation of Three-Dimensional Effect on Blades of a Wind Turbine Based on Field Experiments

LI De-shun; LI Ren-nian; WANG Xiu-yong; WEI Lie-jiang; LI Yin-ran; QIANG Yan; LIU Zhi-qiang

doi:10.3879/j.issn.1000-0887.2013.10.007

Volume 34 Issue 10

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LI De-shun, LI Ren-nian, WANG Xiu-yong, WEI Lie-jiang, LI Yin-ran, QIANG Yan, LIU Zhi-qiang. Investigation of Three-Dimensional Effect on Blades of a Wind Turbine Based on Field Experiments[J]. Applied Mathematics and Mechanics, 2013, 34(10): 1073-1082. doi: 10.3879/j.issn.1000-0887.2013.10.007

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Investigation of Three-Dimensional Effect on Blades of a Wind Turbine Based on Field Experiments

doi: 10.3879/j.issn.1000-0887.2013.10.007

School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou 730050, P.R.China

Funds: The National Basic Research Program of China (973 Program)（2014CB046201）；The National Natural Science Foundation of China（51166009）

Received Date: 2013-08-29
Rev Recd Date: 2013-09-16
Publish Date: 2013-10-15

Abstract

Abstract

Field experiments were performed on a 33 kW horizontal axis wind turbine. The curves of pressure distribution were gathered by 191 pressure sensors disposed span-ward on 7 particular sections of a blade. Then, the 3D numerical simulation of the wind turbine and 2D numerical simulation of the 7 airfoils were performed in comparison with the field experiment results, and the lift and drag coefficients of the 7 airfoils were also obtained for 3D and 2D. The investigation was performed for the turbine aerodynamic characteristics under the 3D effects. At last, conclusions were drawn. The pressure difference of the airfoils first increases and then decreases from the blade tip to the blade root, and the curves of the pressure distribution show the characteristics of flow separation on the blade obviously. The 3D results of pressure on the 7 airfoils are more consistent with the experiments than 2D. There is a more violent 3D flow on the blade surface, especially at the blade tip and the blade root.
- variational third order,
- delay differential equation,
- A-type solution,
- B-type solution

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References(21)

References

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