Investigation of Load Prediction on the Mexico Rotor Using the Technique of Determination of the Angle of Attack

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Bibtex

@article{fdf3bf3bf633435ab0de6b90810ab5dd,
title = "Investigation of Load Prediction on the Mexico Rotor Using the Technique of Determination of the Angle of Attack",
keywords = "Engineering, Blade pressure measurements, Wake vortex model, Computation, Wind turbine, Rotor aerodynamics, Airfoil data",
publisher = "A S M E International",
author = "Hua Yang and Shen, {Wen Zhong} and Sørensen, {Jens Nørkær} and Zhu, {Wei Jun}",
year = "2012",
doi = "10.3901/CJME.2012.03.506",
volume = "25",
number = "3",
pages = "506--514",
journal = "Chinese Journal of Mechanical Engineering",
issn = "1000-9345",

}

RIS

TY - JOUR

T1 - Investigation of Load Prediction on the Mexico Rotor Using the Technique of Determination of the Angle of Attack

A1 - Yang,Hua

A1 - Shen,Wen Zhong

A1 - Sørensen,Jens Nørkær

A1 - Zhu,Wei Jun

AU - Yang,Hua

AU - Shen,Wen Zhong

AU - Sørensen,Jens Nørkær

AU - Zhu,Wei Jun

PB - A S M E International

PY - 2012

Y1 - 2012

N2 - Blade element moment (BEM) is a widely used technique for prediction of wind turbine aerodynamics performance, the reliability of airfoil data is an important factor to improve the prediction accuracy of aerodynamic loads and power using a BEM code. The method of determination of angle of attack on rotor blades developed by SHEN, et al is successfully used to extract airfoil data from experimental characteristics on the MEXICO (Model experiments in controlled conditions) rotor. Detailed surface pressure and particle image velocimetry (PIV) flow fields at different rotor azimuth positions are examined to determine the sectional airfoil data. The present technique uses simultaneously both PIV data and blade pressure data that include the actual flow conditions (for example, tunnel effects), therefore it is more advantageous than other techniques which only use the blade loading (pressure data). The extracted airfoil data are put into a BEM code, and the calculated axial and tangential forces are compared to both computations using BEM with Glauert's and SHEN's tip loss correction models and experimental data. The comparisons show that the present method of determination of angle of attack is correct, and the re-calculated forces have good agreements with the experiment.

AB - Blade element moment (BEM) is a widely used technique for prediction of wind turbine aerodynamics performance, the reliability of airfoil data is an important factor to improve the prediction accuracy of aerodynamic loads and power using a BEM code. The method of determination of angle of attack on rotor blades developed by SHEN, et al is successfully used to extract airfoil data from experimental characteristics on the MEXICO (Model experiments in controlled conditions) rotor. Detailed surface pressure and particle image velocimetry (PIV) flow fields at different rotor azimuth positions are examined to determine the sectional airfoil data. The present technique uses simultaneously both PIV data and blade pressure data that include the actual flow conditions (for example, tunnel effects), therefore it is more advantageous than other techniques which only use the blade loading (pressure data). The extracted airfoil data are put into a BEM code, and the calculated axial and tangential forces are compared to both computations using BEM with Glauert's and SHEN's tip loss correction models and experimental data. The comparisons show that the present method of determination of angle of attack is correct, and the re-calculated forces have good agreements with the experiment.

KW - Engineering

KW - Blade pressure measurements

KW - Wake vortex model

KW - Computation

KW - Wind turbine

KW - Rotor aerodynamics

KW - Airfoil data

U2 - 10.3901/CJME.2012.03.506

DO - 10.3901/CJME.2012.03.506

JO - Chinese Journal of Mechanical Engineering

JF - Chinese Journal of Mechanical Engineering

SN - 1000-9345

IS - 3

VL - 25

SP - 506

EP - 514

ER -