Accession Number : AD1006559

Title :   Stability Analysis for Rotating Stall Dynamics in Axial Flow Compressors

Descriptive Note : Journal Article - Open Access

Corporate Author : Wright Laboratory Wright-Patterson AFB United States

Personal Author(s) : Gu,Guoxiang ; Belta,Calin ; Sparks,Andrew

Full Text :

Report Date : 01 Jan 1999

Pagination or Media Count : 20

Abstract : This paper analyzes the nonlinear phenomenon of rotating stall via the methodsof projection [Elementary Stability and Bifurcation Theory, G. Iooss and D. D. Joseph,Springer-Verlag, 1980] and Lyapunov [J.-H. Fu, Math. Control Signal Systems, 7, 255-278, 1994]. A compressor model of Moore and Greitzer is adopted in which rotating stall dynamics are associated with Hopf bifurcations. Local stability for each pair of the critical modes is studied and characterized. It is shown that local stability of individual pairs ofthe critical modes determines collectively local stability of the compressor model. Explicit conditions are obtained for local stability of rotating stall which offer new insight into the design, and active control of axial flow compressors.

Descriptors :   axisymmetric flow , axial flow compressors , jet aircraft , mass flow , static pressure

Subject Categories : Hydraulic and Pneumatic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE