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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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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.14 No.4
- 발행연도
- 2021.12
- 수록면
- 354 - 372 (19page)
- DOI
- 10.5293/IJFMS.2021.14.4.354
이용수
초록· 키워드
오류제보하기
In deep surges in compressors, the behaviors tend to show either a near-resonant one or a convective one, the latter performing emptying and filling actions. However, detailed information on the differences between them have not been obtained so far. In order to understand the situations, surge simulations by a one-dimensional simulation code were conducted with respect to a single-stage centrifugal compressor, paying attention to the effects of changes in the compressor tip speed and in the geometry of the flowpaths. As the results, it has been found that near-resonant surges appear at very low tip speeds and for relatively narrow sectional areas of the delivery flowpath, and they transform to convective surges of emptying and filling actions toward higher speeds and wider sectional areas. The features of the behaviors are generalized in terms of several non-dimensional surge frequency parameters. The results are visualized by several global framework maps showing the relations among the parameters. The obtained results will give deeper understandings on the surge phenomena.
목차
Abstract
1. Introduction
2. Surge Simulations in the Present Study
3. Comparison of Simulated Results with Experimental Ones
4. Non-dimensional Parameters Related with Surge Frequencies
5. Changes in Surge Frequencies in High-Speed Conditions
6. Behaviors of the Surge Frequency Parameters against the Reduced Resonance Frequency
7. Surge Condition Parameters
8. Significance of the Basic Surge Condition Factor SC0
9. Flow Conditions in the Near-resonant Surges and Convective Surges
10. Distributions of Flow Conditions along the Flowpath
11. Positioning of the Surge Conditions in the Global Surge Parameter Maps
12. Summary
13. Conclusion
References
참고문헌 (7)
참고문헌 신청
Nobuyuki Yamaguchi / 2020 / A Comprehensive View to Surge Frequencies and Stall Stagnations in Axial Flow Compressor Systems / International Journal of Fluid Machinery and Systems 13(2):380~399
Nobuyuki Yamaguchi / 2020 / Macroscopic Features of Surge Behaviors in Axial Flow Compressors / International Journal of Fluid Machinery and Systems 13(2):485~502
Nobuyuki Yamaguchi / 2021 / Behaviors of Surge Frequencies in Multi-stage Axial Flow Compressors over a Wide Range of Speeds / International Journal of Fluid Machinery and Systems 14(1):62~79
Nobuyuki Yamaguchi / 2021 / Compressor Surge Frequencies Modeled by the Concept of Emptying and Filling Actions / International Journal of Fluid Machinery and Systems 14(2):183~198
Ayukawa, S. / 2011 / Effect of Pipe System and Casing Configuration on Surge Phenomenon of Centrifugal Compressor / IGTC 2011, 9th International Gas Turbine Congress 2011
Nobuyuki Yamaguchi / 2020 / Macroscopic Features of Surge Behaviors in Axial Flow Compressors / International Journal of Fluid Machinery and Systems 13(2):485~502
Nobuyuki Yamaguchi / 2021 / Behaviors of Surge Frequencies in Multi-stage Axial Flow Compressors over a Wide Range of Speeds / International Journal of Fluid Machinery and Systems 14(1):62~79
Nobuyuki Yamaguchi / 2021 / Compressor Surge Frequencies Modeled by the Concept of Emptying and Filling Actions / International Journal of Fluid Machinery and Systems 14(2):183~198
Ayukawa, S. / 2011 / Effect of Pipe System and Casing Configuration on Surge Phenomenon of Centrifugal Compressor / IGTC 2011, 9th International Gas Turbine Congress 2011
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UCI(KEPA) : I410-ECN-0101-2022-554-000145934