10.15488/3151
Levy, Y.
Y.
Levy
Pismenny, J.
J.
Pismenny
Reissner, A.
A.
Reissner
Riess, W.
W.
Riess
Relationship between frequencies of pressure oscillations and rotor speed under rotating stall
Berlin : De Gruyter
2002
Article
Pressure oscillation
Rotating stall
Rotor speed
Pressure oscillations
Compressors
Frequencies
Oscillations
Pressure effects
Rotors
Jet engines
Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
Technische Informationsbibliothek (TIB)
Technische Informationsbibliothek (TIB)
2018-04-19
2018-04-19
2002
en
Levy, Y.; Pismenny, J.; Reissner, A.; Riess, W.: Relationship between frequencies of pressure oscillations and rotor speed under rotating stall. In: International Journal of Turbo and Jet Engines 19 (2002), Nr. 4, S. 233-247. DOI: https://doi.org/10.1515/TJJ.2002.19.4.233
http://www.repo.uni-hannover.de/handle/123456789/3181
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The correlation between the frequencies of pressure oscillation ωosc and the rotor speed (frequencies of rotor rotation ωRR) under established rotating stall were determined by three methods: directly from the time diagram of the oscillation process, from the behavior diagram of parameters in space and time and from frequency characteristics. In total accordance with the Theory of Nonlinear Oscillation, by all methods of analysis, the links are in the form of integer ratios: ωosc / ωRR = 1:2 (for n/ nd= 0.6, where n - rotor speed in the experiment and nd- rotor speed from data-sheet) and ωosc / ωRR = 3:7 (for n/ nd = 0.8 and 0.95). The phases of parameter oscillations in the transverse cross-section are equal to the sensor angles in compressor stator. This is in agreement with the theoretical concept of single-cell configurations of rotating stall.