Statistical characteristics of pressure fluctuation on the casing wall of two axial flow compressor rotors have been investigated experimentally to find a precursor of rotating stall. Near stall, the casing wall pressure across a flow passage near the leading edge is characterized by a highly unsteady region where low-momentum fluid accumulates. The periodicity of the pressure fluctuation with blade spacing disappears and an alternative phenomenon comes into existence, which supports the disturbance propagating at a different speed from the rotor revolution. The precursor of rotating stall can be detected by monitoring collapse of the periodicity in the pressure fluctuation. To represent the periodicity qualitatively, a practical detection parameter has been proposed, which is easily obtained from signals of a single pressure sensor installed at an appropriate position on the casing wall during operation of a compressor.
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April 1991
Research Papers
Detection of a Rotating Stall Precursor in Isolated Axial Flow Compressor Rotors
M. Inoue,
M. Inoue
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
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M. Kuroumaru,
M. Kuroumaru
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
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T. Iwamoto,
T. Iwamoto
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
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Y. Ando
Y. Ando
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
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M. Inoue
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
M. Kuroumaru
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
T. Iwamoto
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
Y. Ando
Department of Mechanical Engineering for Power, Kyushu University, Fukuoka, Japan
J. Turbomach. Apr 1991, 113(2): 281-287 (7 pages)
Published Online: April 1, 1991
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Received:
February 7, 1990
Online:
June 9, 2008
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Inoue, M., Kuroumaru, M., Iwamoto, T., and Ando, Y. (April 1, 1991). "Detection of a Rotating Stall Precursor in Isolated Axial Flow Compressor Rotors." ASME. J. Turbomach. April 1991; 113(2): 281–287. https://doi.org/10.1115/1.2929102
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