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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.7 No.3
- 발행연도
- 2014.9
- 수록면
- 110 - 124 (15page)
- DOI
- http://dx.doi.org/10.5293/IJFMS.2014.7.3.110
이용수
초록· 키워드
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Surge phenomena in the zone of reduced speeds in a system of a nine-stage axial flow compressor coupled with ducts were studied analytically by use of a surge transient simulation code. Main results are as follows. (1) Expansion of apparently stable, non-surge working area of the pressure vs. flow field beyond the initial stage-stall line was predicted by the code in the lower speed region. The area proved analytically to be caused by significantly mismatched stage-working conditions, particularly with the front stages deep in the rotating stall branch of the characteristics, as was already known in situ and in steady-state calculations also. (2) Surge frequencies were found to increase for decreasing compressor speeds as far as the particular compressor system was concerned. (3) The tendency was found to be explained by a newly introduced volume-modified reduced surge frequency. It suggests that the surge frequency is related intimately with the process of emptying and filling of air into the delivery volume. (4) The upstream range of movement of the fluid mass having once passed through the compressor in surge was found to reduce toward the lower speeds, which could have caused additionally the increase in surge frequency. (5) The concept of the volume-modified reduced surge frequency was able to explain, though qualitatively at present, the behaviors of the area-pressure ratio parameter for the stall stagnation boundary proposed earlier by the author.
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참고문헌 (7)
참고문헌 신청
Yamaguchi, N. / 2013 / Development of a Simulation Method of Surge Transient Flow Phenomena in a Multistage Axial Flow Compressor and Duct System / International Journal of Fluid Machinery and Systems 6(4):189~199
Yamaguchi, N. / 2012 / A Study on the Stagnation-Stall Boundaries Based on Analytically-Evaluated Surge Conditions in Axial Flow Compressors / The 13-th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines
Yamaguchi, N. / 2013 / Analytical Study on Stall Stagnation Boundaries in Axial-Flow Compressor and Duct Systems / International Journal of Fluid Machinery and Systems 6(2):56~74
Day, I. J. / 1978 / Prediction of Compressor Performances in Rotating Stall / Trans. ASME, Jour. of Eng. for Power 100(1):1~14
Gamache, R.N. / 1986 / Reverse Flow in Multistage Axial Compressors
Yamaguchi, N. / 2012 / A Study on the Stagnation-Stall Boundaries Based on Analytically-Evaluated Surge Conditions in Axial Flow Compressors / The 13-th International Symposium on Unsteady Aerodynamics, Aeroacoustics and Aeroelasticity of Turbomachines
Yamaguchi, N. / 2013 / Analytical Study on Stall Stagnation Boundaries in Axial-Flow Compressor and Duct Systems / International Journal of Fluid Machinery and Systems 6(2):56~74
Day, I. J. / 1978 / Prediction of Compressor Performances in Rotating Stall / Trans. ASME, Jour. of Eng. for Power 100(1):1~14
Gamache, R.N. / 1986 / Reverse Flow in Multistage Axial Compressors
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