UAE6 - Wind Tunnel Tests Data - UAE6 - Sequence 7 - Raw Data

**Overview**

Sequence 7: Shroud Operating (P)

This test sequence used a downwind, rigid turbine with a 3.4° cone angle. The wind speed ranged
from 5 m/s to 25 m/s. Turntable angles from 0° to 30° were achieved, but the yaw error angle was
maintained at 0° by adjusting the nacelle yaw. 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.

An airfoil-shaped aluminum shroud was placed on the tower below the 34% span five-hole probe. It
extended below the 91% span five-hole probe. The turntable angle was adjusted to position the
shroud at various angles relative to the flow, but the turbine yaw error angle was maintained at 0°.
Two additional points were collected where the turntable angle was 0°, and the turbine yaw angle
was 20° (71000200) or -20° (710M0200).

**Data Details**

File naming information can be found in the attached Word document "Sequence 7 Filename Key", copied from the Phase VI Test Report.

概述

序列 7：遮蔽操作（P）

本测试序列采用逆风、刚性风力涡轮机，锥角为3.4°。风速范围为5 m/s至25 m/s。通过调整机舱偏航角度，实现了0°至30°的转盘角度，但偏航误差角保持在0°。叶片尖端的俯仰角为3°。转子转速为72 RPM。收集了叶片和探头压力测量数据。摆动阻尼器被替换为刚性连接，并且这两个通道被标记为不适用，通过在数据文件中将测量值设置为-99999.99 Nm。摆动连杆载荷传感器预紧至40,000 N。

在塔楼下方34%弦长处的五孔探头上方放置了一个翼型铝质遮蔽罩，其延伸至91%弦长处。通过调整转盘角度，将遮蔽罩定位在相对于流体的不同角度，但保持风力涡轮机偏航误差角为0°。在转盘角度为0°的两个附加点处收集了数据，风力涡轮机偏航角分别为20°（71000200）或-20°（710M0200）。

数据详细信息

文件命名信息可在附件中的Word文档“Sequence 7 Filename Key”中找到，该文档从第六阶段测试报告中复制而来。