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Description of the unsteady flow pattern from peak efficiency to near surge in subsonic centrifugal compressor stage

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Academic year: 2021

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Figure

Figure 1: (a) Test case specification; (b) Meridional vue of the compressor stage
Figure 2: (a) Performance of the compressor stage; (b) Performance of the decoupled components Figure 2.a gives the static-total pressure of the stage as a function of the corrected mass flow for steady and unsteady simulations results
Figure 3: Reduced, time-averaged, meridionnal and tangential velocity at section C for PE (left) and NS (right) operating point
Figure 4: Time-averaged helicity at section B for PE (left) and NS (right) operating point
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