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

**Overview**

Sequence P: Wake Flow Visualization, Upwind (P)

This test sequence used an upwind, rigid turbine with a 0° cone angle. The wind speed ranged
from 5 m/s to 15 m/s. Yaw angles of 0° to ?60° were achieved. The blade tip pitch was 3°. 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
pre-tensioned to 40,000 N.

The aluminum blade tip designed to contain a smoke generator was installed, and counterweights
were installed in the non-instrumented blade tip to compensate. The turbine was positioned at the
appropriate yaw angle, and the smoke generator was ignited remotely. The campaign duration
was 3 minutes for all tests except P1000000, which was 2 minutes. The file name convention was
the standard format except for P10000A0, which indicated a 3° pitch angle. File P1000000 used a
12° pitch angle. After these two campaigns were collected, it was determined that all subsequent
data should be collected with a 3° pitch angle. Pressure data were not acquired during this
sequence, so all associated data values were flagged as not applicable by setting the measured
values in the data file to 0.000 Pa. Corresponding pressure data are available from Sequence H for
the 3° pitch angle test points. Flow visualization data obtained from wall- and ceiling-mounted
video cameras were recorded to videotape. The camera locations and calibration procedures are
described in Appendix J.

**Data Details**

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