유체기계공업학회:학술대회논문집
- 유체기계공업학회 2003년도 유체기계 연구개발 발표회 논문집
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- Pages.476-481
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- 2003
입구 불균일 유동에 의한 원심압축기 스톨에 관한 실험적 연구
The Effect of Inlet Distortion on a Centrifugal Compressor
- 발행 : 2003.12.05
초록
In this paper, the effect of circumferential inlet distortion on performance and stall has been experimentally investigated in a high-speed centrifugal compressor, comparing distorted cases with undistorted one. The performance of compressor was slightly deteriorated by defect of inlet static pressure which is caused by the circumferential inlet distortion. As stall was fully developed the inlet distortion did not affect the number of stall cell and the propagation velocity. It also did not affect stall inception at 40,000 and 50,000 rpm. However stall occurred at the lower flow rate for distorted flow at 60,000 rpm. For 50,000 rpm a unexpected phenomenon occurred : stall occurred first and then it disappeared.