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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.13 No.2
- 발행연도
- 2020.6
- 수록면
- 485 - 502 (18page)
- DOI
- 10.5293/IJFMS.2020.13.2.485
이용수
초록· 키워드
오류제보하기
An essential parameter governing the surge behaviors in compressor systems was found on the basis of numerical-experimental results by surge simulations. It is named “flowpath-average reduced resonance frequency”, consisted of the resonance frequency, the total flowpath length and the average velocity. The reduced frequency normalized by the compressor tip Mach number tends to be basically about 1.5 at the stall stagnation boundaries for compressors having few stages and low pressure-ratios, although the value could vary to some extent affected by various circumstantial factors. It means that the stall stagnations could be caused by insufficient number of times of excitations by the resonant frequency on the fluid particles in passing through the whole flowpath. Deep surges tend to occur for the parameter values greater than around 1.5. On the foundation of the normalized flowpath-average reduced resonance frequency can be formed a basic framework for the surge behaviors in terms of non-dimensional surge frequencies and stall-stagnation points. In reference to the framework, several general features of the surge behaviors are described in a relatively unified manner, including the behaviors of surge frequencies and stall stagnation boundaries, which are affected in a complicated manner by compressor conditions of speeds, pressure ratios, and number of stages, and flowpath geometries, relative compressor locations in the flowpath, etc. The framework contributes much to clarification of the characteristic behaviors in surges hitherto unexplained and could provide keys to further surge studies. It could also be useful to devise countermeasures against stall stagnation problems.
목차
Abstract
1. Introduction
2. A Brief Review on the Pursuit of the New Parameters
3. Surge Simulations on Axial Flow Compressors
4. Whole Picture of Surge: Surge Frequencies and Stall Stagnation Boundaries
5. Stall Stagnation Boundaries
6. Global Features of the Surge Behaviors
7. Surge Behaviors in Multi-stage Situations
8. Effects of Stage Characteristics on the Surge Behaviors
9. Comparison of the Stagnation Criterion with Some Experiences
10. Summary
11. Conclusion
Literature
참고문헌 (25)
참고문헌 신청
Fujii, S / 1947 / Stability and Surging in entrifugal Pumps, Part 1 and Part 2 (in Japanese) / Transaction, Japan Society of Mechanical Engineers 13(44):184~191
Greitzer, E. M. / 1976 / Surge and Rotating Stall in Axial Flow Compressors, Part I : Theoretical Compression System Model / Journal of Engineering for Power 98:190~198
Greitzer, E. M. / 1976 / Surge and Rotating Stall in Axial Flow Compressors, Part II : Experimental Results and Comparison with Theory / Journal of Engineering for Power 98:199~217
Gamache, R.N. / 1986 / Reverse Flow in Multistage Axial Compressors / AIAA-86-1747
Day, I. J. / 1978 / Prediction of Compressor Performance in Rotating Stall / Journal of Engineering for Power 100(1):1~14
Greitzer, E. M. / 1976 / Surge and Rotating Stall in Axial Flow Compressors, Part I : Theoretical Compression System Model / Journal of Engineering for Power 98:190~198
Greitzer, E. M. / 1976 / Surge and Rotating Stall in Axial Flow Compressors, Part II : Experimental Results and Comparison with Theory / Journal of Engineering for Power 98:199~217
Gamache, R.N. / 1986 / Reverse Flow in Multistage Axial Compressors / AIAA-86-1747
Day, I. J. / 1978 / Prediction of Compressor Performance in Rotating Stall / Journal of Engineering for Power 100(1):1~14
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