Effect of Wake Disturbance Frequency on the Secondary Flow Vortex Structure in a Turbine Blade Cascade

[+] Author and Article Information
Christopher G. Murawski

Propulsion Directorate, Air Force Research Laboratory, USAF, Wright Patterson AFB, OH 45433

Kambiz Vafai

Department of Mechanical Engineering, The Ohio State University, Columbus, OH 43210

J. Fluids Eng 122(3), 606-613 (Mar 27, 2000) (8 pages) doi:10.1115/1.1287792 History: Received August 10, 1999; Revised March 27, 2000
Copyright © 2000 by ASME
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Secondary flow vortex structure at the Cascade Exit Plane
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Secondary flow vortex structure model
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Wake generator velocities with motor control set at (a) 10 percent, (b) 20 percent, (c) 50 percent, and (d) 80 percent
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Flow visualization with single wake passing event. (a) Undisturbed vortex structure; (b) one vortex structure intact and one vortex structure destroyed
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Flow visualization with multiple wake passing events. (a) Undisturbed vortex structure; (b) One vortex structure destroyed and one vortex structure intact; (c) Upstream wakes about to destroy vortex structures; (d) Upstream wakes destroying both vortex structures
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Multiple wake with vortex recovery flow model




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