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A theory of post-stall transients in axial compression systems. II - ApplicationUsing the theory developed in Part I, calculations have been carried out to show the evolution of the mass flow, pressure rise, and rotating-stall cell amplitude during compression system post-stall transients. In particular, it is shown that the unsteady growth or decay of the stall cell can have a significant effect on the instantaneous compressor pumping characteristic and hence on the overall system behavior. A limited parametric study is carried out to illustrate the impact of different system features on transient behavior. It is shown, for example, that the ultimate mode of system response, surge or stable rotating stall, depends not only on the B parameter, but also on the compressor length-to-radius ratio. Small values of this latter quantity tend to favor the occurrence of surge, as do large values of B. Based on the analytical and numerical results, several specific topics are suggested for future research on post-stall transients.
Document ID
19860037351
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Greitzer, E. M.
(MIT Cambridge, MA, United States)
Moore, F. K.
(Cornell University Ithaca, NY, United States)
Date Acquired
August 12, 2013
Publication Date
March 1, 1985
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
ASME PAPER 85-GT-172
Accession Number
86A22089
Funding Number(s)
CONTRACT_GRANT: NSG-3208
Distribution Limits
Public
Copyright
Other

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