Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field
Aerodynamic measurement on horizontal axis wind turbines in the field is a challenging research topic and also an essential research method on the aerodynamic performance of blades in real atmospheric inflow conditions. However, the angle of attack is difficult to determine in the field due to the u...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/3/482 |
| _version_ | 1818525967744761856 |
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| author | Guangxing Wu Lei Zhang Ke Yang |
| author_facet | Guangxing Wu Lei Zhang Ke Yang |
| author_sort | Guangxing Wu |
| collection | DOAJ |
| description | Aerodynamic measurement on horizontal axis wind turbines in the field is a challenging research topic and also an essential research method on the aerodynamic performance of blades in real atmospheric inflow conditions. However, the angle of attack is difficult to determine in the field due to the unsteadiness and unevenness of the inflow. To study the measuring and analyzing method of angle of attack in the field, a platform was developed based on a 100 kW wind turbine from the Institute of Engineering Thermophysics (IET) in China in this paper. Seven-hole probes were developed and installed at the leading edge to measure the inflow direction, static and total pressure at the near field. Two data reducing processes, sideslip angle correction, and induced velocity correction, were proposed to determine the effective angle of attack based on the inflow data measured by probes. The aerodynamic measurement platform was first validated by the comparison with wind tunnel results. Then some particular aerodynamic phenomenon in the field were discussed. As a result, the angle of attack varies quasi-periodically with the rotation of the rotor, which is caused by the yaw angle of the inflow. The variation of angle of attack induces dynamic response of a clockwise hysteresis loop in lift coefficient. The dynamic response is the main source of a dispersion of instantaneous lift coefficients with a standard deviation of 0.2. |
| first_indexed | 2024-12-11T06:16:25Z |
| format | Article |
| id | doaj.art-56172c45ff2440dd90ff803356d4f904 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T06:16:25Z |
| publishDate | 2019-01-01 |
| publisher | MDPI AG |
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| series | Applied Sciences |
| spelling | doaj.art-56172c45ff2440dd90ff803356d4f9042022-12-22T01:17:58ZengMDPI AGApplied Sciences2076-34172019-01-019348210.3390/app9030482app9030482Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the FieldGuangxing Wu0Lei Zhang1Ke Yang2Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, ChinaInstitute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, ChinaAerodynamic measurement on horizontal axis wind turbines in the field is a challenging research topic and also an essential research method on the aerodynamic performance of blades in real atmospheric inflow conditions. However, the angle of attack is difficult to determine in the field due to the unsteadiness and unevenness of the inflow. To study the measuring and analyzing method of angle of attack in the field, a platform was developed based on a 100 kW wind turbine from the Institute of Engineering Thermophysics (IET) in China in this paper. Seven-hole probes were developed and installed at the leading edge to measure the inflow direction, static and total pressure at the near field. Two data reducing processes, sideslip angle correction, and induced velocity correction, were proposed to determine the effective angle of attack based on the inflow data measured by probes. The aerodynamic measurement platform was first validated by the comparison with wind tunnel results. Then some particular aerodynamic phenomenon in the field were discussed. As a result, the angle of attack varies quasi-periodically with the rotation of the rotor, which is caused by the yaw angle of the inflow. The variation of angle of attack induces dynamic response of a clockwise hysteresis loop in lift coefficient. The dynamic response is the main source of a dispersion of instantaneous lift coefficients with a standard deviation of 0.2.https://www.mdpi.com/2076-3417/9/3/482wind turbineaerodynamic field measurementeffective angle of attacksurface pressure |
| spellingShingle | Guangxing Wu Lei Zhang Ke Yang Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field Applied Sciences wind turbine aerodynamic field measurement effective angle of attack surface pressure |
| title | Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field |
| title_full | Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field |
| title_fullStr | Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field |
| title_full_unstemmed | Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field |
| title_short | Development and Validation of Aerodynamic Measurement on a Horizontal Axis Wind Turbine in the Field |
| title_sort | development and validation of aerodynamic measurement on a horizontal axis wind turbine in the field |
| topic | wind turbine aerodynamic field measurement effective angle of attack surface pressure |
| url | https://www.mdpi.com/2076-3417/9/3/482 |
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