Independent Stage Control of a Cascade Injector (Postprint)
CINCINNATI UNIV OH DEPT OF AEROSPACE ENGINEERING
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An experimental investigation of a cascade injector was completed. The objective of this investigation was to determine whether the number of active stages in the cascade injector could be used to control penetration and mixing characteristics. The injector was tested at two overexpanded injection conditions in a Mach 3 crossflow. Shadowgraph and schlieren imaging, Mie scattering, Planar Laser Induced Fluorescence, and pressure profiling were the diagnostic techniques used to reveal various features of the injectant plume and its interaction with the supersonic crossflow. Results suggest that penetration can be controlled by the number of active stages in the cascade injector. Additional analysis and experiments are planned to better quantify the effects of injector stages revealed in this initial work.
- Manufacturing and Industrial Engineering and Control of Production Systems