U.S. Department of EnergyOffice of Scientific and Technical Information
UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence L - Raw Data
Abstract
Sequence L: Step AOA, Parked (P) This sequence was designed to quantify the 3-D blade static angle-of-attack response in the absence of rotational influences by varying the blade pitch angle. This test sequence used an upwind, rigid turbine with a 0° cone angle. Wind speeds of 20 m/s and 30 m/s were used, and all data were collected at a yaw angle of 0°. The rotor was parked with the instrumented blade fixed at 0° azimuth, and the rotor lock was installed (see Appendix A). Blade and probe pressure measurements were collected. The teeter dampers were replaced with rigid links, and these two channels were flagged as not applicable by setting the measured values in the data file to -99999.99 Nm. The teeter link load cell was pre-tensioned to 40,000 N. The blade pitch angle ramped continuously at 0.18°/s over a wide range of increasing and decreasing pitch angles. A step sequence was also performed. The blade pitch was stepped 5°, the flow was allowed to stabilize, and the pitch angle was held for 8 seconds. Then the pitch angle step was repeated. Again, a wide range of pitch angles was obtained, both increasing and decreasing. The file lengths formore »
- Authors:
- Publication Date:
- DOE Contract Number:
- 67025F
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Atmosphere to Electrons (A2e) Data Archive and Portal
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
- Subject:
- 17 Wind Energy
- OSTI Identifier:
- 1483817
- DOI:
- https://doi.org/10.21947/1483817
Citation Formats
Fingersh, Lee. UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence L - Raw Data. United States: N. p., 2022.
Web. doi:10.21947/1483817.
Fingersh, Lee. UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence L - Raw Data. United States. doi:https://doi.org/10.21947/1483817
Fingersh, Lee. 2022.
"UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence L - Raw Data". United States. doi:https://doi.org/10.21947/1483817. https://www.osti.gov/servlets/purl/1483817. Pub date:Mon Nov 28 00:00:00 EST 2022
@article{osti_1483817,
title = {UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence L - Raw Data},
author = {Fingersh, Lee},
abstractNote = {Sequence L: Step AOA, Parked (P) This sequence was designed to quantify the 3-D blade static angle-of-attack response in the absence of rotational influences by varying the blade pitch angle. This test sequence used an upwind, rigid turbine with a 0° cone angle. Wind speeds of 20 m/s and 30 m/s were used, and all data were collected at a yaw angle of 0°. The rotor was parked with the instrumented blade fixed at 0° azimuth, and the rotor lock was installed (see Appendix A). Blade and probe pressure measurements were collected. The teeter dampers were replaced with rigid links, and these two channels were flagged as not applicable by setting the measured values in the data file to -99999.99 Nm. The teeter link load cell was pre-tensioned to 40,000 N. The blade pitch angle ramped continuously at 0.18°/s over a wide range of increasing and decreasing pitch angles. A step sequence was also performed. The blade pitch was stepped 5°, the flow was allowed to stabilize, and the pitch angle was held for 8 seconds. Then the pitch angle step was repeated. Again, a wide range of pitch angles was obtained, both increasing and decreasing. The file lengths for this sequence varied from 5 to 10 minutes, depending on the pitch angle range. The file name convention used the initial letter L followed by two digits specifying wind speed, followed by 00 for yaw angle, followed by RU, RD, or ST, followed by the repetition digit. The angle-of-attack motion was differentiated by RU (ramp up), RD (ramp down), and ST (step down, then step up). This sequence is related to sequences K and R.},
doi = {10.21947/1483817},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 28 00:00:00 EST 2022},
month = {Mon Nov 28 00:00:00 EST 2022}
}