WINDTUNER products used:
5-hole probes, WINDTUNER DAQ-P pressure scanner， displacement mechanism
3D flow field velocity field and pressure filed in
the fan and the duct
Low-speed calibration of 5-hole probes
Velocity measurement, measurement error is less than 2%, angle range is greater than ±30°
Pressure measurement, pressure resolution is less than 1%
The system acquisition frequency is 10Hz.