The effectiveness of jet actuation for active modal control of rotating stall is investigated experimentally. The dominant physical effects of injection, such as momentum and mass addition, are elucidated. The results indicate that several of the theoretical assumptions used in past studies of jet injection for rotating stall control must be revised. An updated model of the compression system with jet actuation which allows for the effect of control feedback dynamics to be adequately characterized is developed and verified with forced response measurements. It predicts the right trends of movement of the critical pole. Preliminary active control results are presented, among which is a 5.5% range extension in downstream flow coefficient.
- International Gas Turbine Institute
Experimental Development of a Jet Injection Model for Rotating Stall Control
Vo, HD, & Paduano, JD. "Experimental Development of a Jet Injection Model for Rotating Stall Control." Proceedings of the ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. Volume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education. Stockholm, Sweden. June 2–5, 1998. V005T15A025. ASME. https://doi.org/10.1115/98-GT-308
Download citation file: