UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence S - Raw Data

**Overview**

Sequences S, T, and U: Upwind, No Probes (F); Upwind 2° Pitch (F);
Upwind 4° Pitch (F)

This test sequence used an upwind, rigid turbine with a 0° cone angle. The wind speed ranged
from 5 m/s to 25 m/s. Yaw angles of 0° to 180° were achieved for Sequence S, but the yaw angle
remained at 0° for Sequences T and U. The blade tip pitch was 3° for Sequence S, 2° for
Sequence T, and 4° for Sequence U. These three sequences were interleaved during testing
because the pitch angle change was easily made by the turbine operator. The rotor rotated at 72
RPM. Blade pressure measurements were collected. The five-hole probes were removed and the
plugs were installed. 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.

In addition to the standard 30-second campaigns, yaw sweeps were done at 7 m/s and 10 m/s for
the Sequence S configuration. These 6-minute campaigns were collected while the yaw drive
rotated the turbine 360° at a rate of 1°/s. The file names for these campaigns use the letter
designation, followed by two digits for wind speed, followed by YSU, followed by 00.

**Data Details**

File naming information can be found in the attached Word document "Sequence S Filename Key", copied from the Phase VI Test Report.