Abstract:In order to meet the requirements of the measurement of the dynamic pressure field in the vertical wind tunnel, a combined measurement device with double inverted “T” structure is proposed. The horizontal and vertical movement of the pipe rack is realized by the synchronous control of the motor. The cross section of the pipe rack adopts NACA0020 symmetrical airfoil. The original five-hole probe with a diameter of 12 mm is optimized to 8 mm, and the field installation and commissioning are carried out. The test results show that the control precision of the device in the horizontal and vertical directions is 0.2 mm. The first phase of the directional field and dynamic pressure field measurement test was carried out in the vertical wind tunnel. The results show that the performance of the device is more advanced, and the directional field and dynamic pressure field data in the model area of the vertical wind tunnel test section are accurately measured, which can be used as one of the main devices for flow field calibration in the future.