Evolution of unsteady flow near rotor tip during stall inception |
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Authors: | Shaojuan Geng Feng Lin Jingyi Chen Chaoqun Nie |
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Affiliation: | Shaojuan Geng,Feng Lin,Jingyi Chen and Chaoqun Nie Institute of Engineering Thermophysics,Chinese Academy of Sciences,P.O.Box 2706,Beijing 100190,China |
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Abstract: | Previously the features of circumferential propagation of self-induced tip leakage flow unsteadiness for a low speed isolated axial compressor rotor in the authors' laboratory were discovered and investigated via numerical simulation,which only occurs below a critical stable flow point that is close to but not yet at the stall limit.Further in this paper,the detailed investigation on evolution of tip leakage flow during the throttling process into spike rotating stall was conducted by adopting the valve-thr... |
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Keywords: | Axial compressor stall inception tip leakage flow rotating instability numerical simulation |
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