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초록· 키워드

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An experimental study on the flow characteristics in an axial compressor was conducted to investigate the performance of the compressor. The compressor was scaled down from the low-speed research compressor designed by GE Aircraft Engine for the purpose of investigating the unsteady aerodynamics in more detail in complicated flow field due to rotor-stator interaction. It consisted of an IGV (inlet guide vane) row and 4-stage rotor and stator rows. The distributions of velocity and static pressure were measured at the exits of the third-stage rotor and stator rows respectively, with hot-wire anemometer and 5-hole Pitot tube, and the loss coefficient was calculated from the velocity and pressure distributions.
In addition, the behavior of rotating stall at the exit of the third stage rotor row was investigated to study the instability of the compression system from hot-wire signal analysis and the existence and behavior of stall cell could be confirmed from FFT and cross-correlation.

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Abstract
1. INTRODUCTION
2. FACILITY AND DATA ACQUISITION
3. RESULTS AND DISCUSSIONS
4. CONCLUSIONS
REFERENCES

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