Abstract:
In order to improve the efficiency of steam turbine and gas turbine, it is necessary to measure accurately the aerodynamic performance of the flow field, expecially the unsteady flow field. The high frequency response aerodynamic probe can effectively measure the three-dimensional unsteady flow field in turbomachinery. The development of high frequency response probe mainly involves the shape and size of probe, dynamic characteristics of pneumatic cavity, calibration and data post-processing. In this paper, the research status and development trend of the probe in these aspects were reviewed. The respective characteristics, scope of application and limitations of high frequency response probes were summarized, and the development directions and difficulties in the future were pointed out, which provides reference for relevant researchers to further carry out theoretical analysis, numerical research and application design.