Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Development of a Laboratory-based Calibration System for 5-Hole Probes

5공 프로브 실험실용 교정 시스템 개발

  • Kim, Changmin (Dept. of Mechanical Engineering, Seoul National University) ;
  • Baek, Seungchan (Dept. of Mechanical Engineering, Seoul National University) ;
  • Ji, Changeun (Dept. of Mechanical Engineering, Seoul National University) ;
  • Hwang, Wontae (Dept. of Mechanical Engineering, Institute of Advanced Machines and Design, Institute of Engineering Research, Seoul National University)
  • Received : 2020.12.02
  • Accepted : 2020.12.31
  • Published : 2020.12.31
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Abstract

In the field of experimental fluid dynamics, the 5-hole probe is one of the most widely used tools to measure flow velocity and pressure. We hereby describe the development of an inexpensive laboratory-based flow calibration system for 5-hole probes. The system is applied to a custom L-shaped probe, and the probe performance is compared against a standard commercial probe in a custom wind tunnel. The setup allows rotation of the probe around the yaw and pitch axes. Static and total pressure values are calculated, and then calibration maps are constructed based on the yaw and pitch angles. Using these maps, errors of the custom probe are found to be ±5% for velocity magnitude and ±3° for direction, compared to the commercial probe, when both pitch and yaw angles are within 40°.

Keywords

Acknowledgement

This work has been supported by the UAV High Efficiency Turbine Research Center program of Defense Acquisition Program Administration and Agency for Defense Development.

References

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