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

**Overview**

Sequence Q: Dynamic Inflow (P)

This sequence was designed to characterize the dynamic inflow variation using the five-hole
probes that extend upwind of the leading edge of the blade. This test sequence used an upwind,
rigid turbine with a 0° cone angle. The wind speeds ranged from 5 m/s to 15 m/s, and data were
collected at a 0° yaw angle. The rotor rotated at 72 RPM. 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 pretensioned to 40,000 N.
The blade pitch angle was changed from the initial tip pitch angle to the final tip pitch angle at the
maximum rate of 67°/s. This angle was maintained for the specified delay time duration. Then the
blade was pitched back to the initial pitch angle and held for the specified hold time. This was
repeated 20 times. The campaign at 15 m/s was aborted early due to excessive low-speed shaft
torque loads. The file length varied depending on the time required to obtain 20 pitch cycles for
the specified range of angles. The name convention was the standard format, except for the short
campaigns collected to ascertain the functionality of the instrumentation. These points were
collected at a 3° pitch angle and use the characters REF in the four digits that normally represent
yaw angle.

**Data Details**

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