{"@type": "dcat:Dataset", "DOI": "10.21947/1483827", "accessLevel": "public", "bureauCode": ["019:20"], "contactPoint": {"@type": "vcard:Contact", "fn": "Lee Fingersh", "hasEmail": "mailto:lee.fingersh@nrel.gov"}, "dataQuality": true, "description": "**Overview**\n\nSequence R: Step AOA, No Probes (P)\n\nThis sequence was designed to quantify the effect of the five-hole probes on the 3-D blade static\nangle-of-attack response in the presence of rotational influences by repeating Sequence K without\nfive-hole probes. This test sequence used an upwind, rigid turbine with a 0\u00b0 cone angle. The wind\nspeeds ranged from 6 m/s to 20 m/s, and data were collected at yaw angles of 0\u00b0 and 30\u00b0. The\nrotor rotated at 72 RPM. Blade pressure measurements were collected. The five-hole probes were\nremoved and the plugs were installed. Plastic tape 0.03-mm-thick was used to smooth the\ninterface between the plugs and the blade. The teeter dampers were replaced with rigid links, and\nthese two channels were flagged as not applicable by setting the measured values in the data file\nto \u201399999.99 Nm. The teeter link load cell was pre-tensioned to 40,000 N. During post-processing,\nthe probe channels were set to read \u201399999.99.\n\nThe blade pitch angle ramped continuously at 0.18\u00b0/s over a wide range of increasing and\ndecreasing pitch angles. A step sequence was also performed. The blade pitch was stepped 5\u00b0; the\nflow was allowed to stabilize; and the pitch angle was held for 5 seconds. Then the pitch angle\nstep was repeated. Again, a wide range of pitch angles was obtained, both increasing and\ndecreasing. The file lengths for this sequence varied from 96 seconds to 6 minutes, depending on\nthe pitch angle range. Some short points were collected at 0\u00b0 yaw and 3\u00b0 pitch to ascertain the\nfunctionality of the instrumentation and repeatability over time. The file name convention used\nthe initial letter R, followed by two digits specifying wind speed, followed by two digits for yaw\nangle, followed by RU, RD, or ST, followed by the repetition digit. The angle of attack motion\nwas differentiated by RU (ramp up), RD (ramp down), and ST (step down, then step up). This\nsequence is related to Sequences K and L.\n\n**Data Details**\n\nFile naming information can be found in the attached Word document \"Sequence R Filename Key\", copied from the Phase VI Test Report.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://a2e.energy.gov/data/uae6/uae6.z17.00", "description": "Main dataset landing page with options to request/download", "format": "00", "mediaType": "application/octet-stream", "title": "uae6/uae6.z17.00"}], "identifier": "https://data.openei.org/submissions/4213", "issued": "2018-11-29T00:00:00Z", "keyword": ["a2e", "atmosphere to electrons", "wind", "weto", "eere", "uae6", "Unsteady Aerodynamics Experiment Phase VI NREL-NASA Ames Wind Tunnel Experiment", "UAE6", "Wind Tunnel Tests Data", "Sequence R", "Raw Data", "z17", "00"], "landingPage": "https://a2e.energy.gov/data/uae6/uae6.z17.00", "license": "https://creativecommons.org/licenses/by/4.0/", "modified": "2020-03-27T00:00:00Z", "programCode": ["019:010"], "projectNumber": "67025", "projectTitle": "Wind Data Hub", "publisher": {"@type": "org:Organization", "name": "Wind Energy Technologies Office (WETO)"}, "title": "UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence R - Raw Data"}