Abstract
Active control of multistage axial-compressor aerodynamic instabilities has been studied analytically using a blade-row by blade-row compression system model. The instabilities considered are those which result from a global system instability. The control approach taken is to suppress the instability by actively changing the system damping characteristics. This was accomplished by varying dynamically the compressor stage characteristics to extend the region of the compression system operation. Specifically, the stator row of a compressor stage is actively dithered based on its inlet or exit pressure fluctuation measurement, in such a way that the stage characteristics are modified to improve the overall system stability.
Adapted with permission of the ASME from a presentation at the International Gas Turbine and Aeroengine Congress and Exposition, Orlando, FL, 1991.
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© 1993 Springer Science+Business Media Dordrecht
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Hosny, W.M., Leventhal, L., Steenken, W.G. (1993). A Study of Active Dither Control of Aerodynamic Instabilities in Axial - Compressors. In: Ashpis, D.E., Gatski, T.B., Hirsh, R. (eds) Instabilities and Turbulence in Engineering Flows. Fluid Mechanics and Its Applications, vol 16. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1743-2_7
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DOI: https://doi.org/10.1007/978-94-011-1743-2_7
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