UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence 5 - Raw Data [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 621.31 Generation, modification, storage, transmission of electric power

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Energy Efficiency and Renewable Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2021

Mô tả vật lý: : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 257538

Sequence 5: Sweep Wind Speed (F,P) This test sequence used an upwind, rigid turbine with a 0� cone angle. The wind speed was ramped from 5 m/s to 25 m/s by the wind tunnel operator. This was repeated with a decreasing ramp. The yaw angle was maintained at 0�. The blade tip pitch was 3� or 6�. The rotor rotated at 72 RPM. Blade pressure and probe measurements were collected for both pitch angles. The five-hole probes were removed and the plugs were installed for another 3� pitch case. Plastic tape 0.03 mm thick was used to smooth the interface between the plugs and the blade. 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. During post-processing, the probe channels were set to read -99999.99. The 6- minute campaigns were named using the sequence designation 5, followed by DN or UP, which indicates the wind speed ramp direction. The next four digits are 0000, and the sequence digit is at the end.
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