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International Journal of Turbomachinery, Propulsion and Power
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International Journal of Turbomachinery, Propulsion and Power, Volume 6, Issue 4

2021 December - 7 articles

Cover Story: In many cases, fan or compressor stages have to face azimuthal flow distortion at inlet, which affects their performance and stability. These distortions can be caused by external events or by geometrical features. This work proposes a joined analysis of the flow behavior in a single axial compressor stage under flow distortion. Experimentally, the flow analysis is based on the measurements obtained by unsteady pressure sensors. The distortion is simulated by a drop of stagnation pressure ratio at the inlet boundary condition. This study focuses on the ability of a pressure drop, imposed as an inlet boundary condition in CFD, to accurately reproduce the effect of a flow distortion. Attention is then paid to the experimental level, to the arising of the rotating stall, from the onset of the instability up to completely developed stall cells. View this paper
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Int. J. Turbomach. Propuls. Power - ISSN 2504-186X
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