Relationship between frequencies of pressure oscillations and rotor speed under rotating stall

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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

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Sum total of downloads: 65




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Abstract: 
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.
License of this version: Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. Dieser Beitrag ist aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Document Type: article
Publishing status: publishedVersion
Issue Date: 2002
Appears in Collections:Fakultät für Maschinenbau

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pos. country downloads
total perc.
1 image of flag of Germany Germany 30 46.15%
2 image of flag of China China 11 16.92%
3 image of flag of France France 6 9.23%
4 image of flag of United States United States 3 4.62%
5 image of flag of Czech Republic Czech Republic 2 3.08%
6 image of flag of Canada Canada 2 3.08%
7 image of flag of Russian Federation Russian Federation 1 1.54%
8 image of flag of Lithuania Lithuania 1 1.54%
9 image of flag of Japan Japan 1 1.54%
10 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 1 1.54%
    other countries 7 10.77%

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