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The present study is focused on the analysis of the deterministic fluctuations arising from the rotor-stator interac-tion within a transonic centrifugal compressor stage.A spectral analysis applied to the unsteady flow field leads tothe values of the rotation speed of most energetic modes.From these values,the various structures are classifiedaccording to their direction of propagation which leads to a comprehensive description of the underlying mecha-nisms involved in the interaction.
The present study is focused on the analysis of the deterministic fluctuations arising from the rotor-stator interac-tion within a transonic centrifugal compressor stage. A spectral analysis applied to the unsteady flow field leads tothe values of the rotation speed of most energetic modes.From these values, the various structures are classifiedaccording to their direction of propagation which leads to a comprehensive description of the underlying mecha-nisms involved in the interaction.