Wind turbine airfoil design method with low noise and experimental analysis

Quan Wang; Jin Chen; Jiangtao Cheng; Jun Wang; Jinfeng Sun; Ying You

doi:10.13700/j.bh.1001-5965.2014.0072

Wind turbine airfoil design method with low noise and experimental analysis

Quan Wang, Jin Chen, Jiangtao Cheng, Jun Wang, Jinfeng Sun, Ying You

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Abstract

In order to study the noise characteristic of wind turbine airfoils, the airfoil optimal design mathematic model was built based on airfoil functional integrated theory and noise calculated model. The new optimized objective function of maximizing lift/drag to noise was developed on the design angle of attack. Then, the comparison of sound pressure level between CQU-DTU-B18 and NACA-64-618 airfoil was analyzed under the same condition of wind tunnel experiment and wind speed. It is indicated that the changed trend of the predicted noise results are in agreement with that of the tested data, though there is a certain difference between the theory results and experiment data. Compared with NACA-64-618 airfoil, the CQU-DTU-B18 airfoil exhibits lower noise, which validates the feasibility of this design method. It is a guide to design wind turbine airfoil with lower noise and to reduce airfoil noise.

Original language	English
Journal	Journal of Beijing University of Aeronautics and Astronautics
Volume	41
Issue number	1
Pages (from-to)	23-28
ISSN	1001-5965
DOIs	https://doi.org/10.13700/j.bh.1001-5965.2014.0072
Publication status	Published - 2015

Keywords

Frequency
Noise
Sound pressure level
Wind tunnel test
Wind turbine airfoil

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title = "Wind turbine airfoil design method with low noise and experimental analysis",

abstract = "In order to study the noise characteristic of wind turbine airfoils, the airfoil optimal design mathematic model was built based on airfoil functional integrated theory and noise calculated model. The new optimized objective function of maximizing lift/drag to noise was developed on the design angle of attack. Then, the comparison of sound pressure level between CQU-DTU-B18 and NACA-64-618 airfoil was analyzed under the same condition of wind tunnel experiment and wind speed. It is indicated that the changed trend of the predicted noise results are in agreement with that of the tested data, though there is a certain difference between the theory results and experiment data. Compared with NACA-64-618 airfoil, the CQU-DTU-B18 airfoil exhibits lower noise, which validates the feasibility of this design method. It is a guide to design wind turbine airfoil with lower noise and to reduce airfoil noise.",

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T1 - Wind turbine airfoil design method with low noise and experimental analysis

AU - Wang, Quan

AU - Chen, Jin

AU - Cheng, Jiangtao

AU - Wang, Jun

AU - Sun, Jinfeng

AU - You, Ying

PY - 2015

Y1 - 2015

N2 - In order to study the noise characteristic of wind turbine airfoils, the airfoil optimal design mathematic model was built based on airfoil functional integrated theory and noise calculated model. The new optimized objective function of maximizing lift/drag to noise was developed on the design angle of attack. Then, the comparison of sound pressure level between CQU-DTU-B18 and NACA-64-618 airfoil was analyzed under the same condition of wind tunnel experiment and wind speed. It is indicated that the changed trend of the predicted noise results are in agreement with that of the tested data, though there is a certain difference between the theory results and experiment data. Compared with NACA-64-618 airfoil, the CQU-DTU-B18 airfoil exhibits lower noise, which validates the feasibility of this design method. It is a guide to design wind turbine airfoil with lower noise and to reduce airfoil noise.

AB - In order to study the noise characteristic of wind turbine airfoils, the airfoil optimal design mathematic model was built based on airfoil functional integrated theory and noise calculated model. The new optimized objective function of maximizing lift/drag to noise was developed on the design angle of attack. Then, the comparison of sound pressure level between CQU-DTU-B18 and NACA-64-618 airfoil was analyzed under the same condition of wind tunnel experiment and wind speed. It is indicated that the changed trend of the predicted noise results are in agreement with that of the tested data, though there is a certain difference between the theory results and experiment data. Compared with NACA-64-618 airfoil, the CQU-DTU-B18 airfoil exhibits lower noise, which validates the feasibility of this design method. It is a guide to design wind turbine airfoil with lower noise and to reduce airfoil noise.

KW - Frequency

KW - Noise

KW - Sound pressure level

KW - Wind tunnel test

KW - Wind turbine airfoil

U2 - 10.13700/j.bh.1001-5965.2014.0072

DO - 10.13700/j.bh.1001-5965.2014.0072

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SP - 23

EP - 28

JO - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

JF - Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics

IS - 1

ER -

Wind turbine airfoil design method with low noise and experimental analysis

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Keywords

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