WINDTUNER products used: 5-hole probes, WINDTUNER DAQ-P pressure scanner, displacement mechanism —— Requirements addressed: 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. |