The Hybrid Diffuser

[+] Author and Article Information
R. C. Adkins

Thermal Power Group, School of Mechanical Engineering, Cranfield Institute of Technology, Cranfield, Bedfordshire, England

D. S. Matharu

Rolls-Royce Aero Division, Filton, Bristol, England

J. O. Yost

Turbomachinery, Rolls-Royce Aero Division, Filton, Bristol, England

J. Eng. Power 103(1), 229-236 (Jan 01, 1981) (8 pages) doi:10.1115/1.3230702 History: Received January 02, 1980; Online September 28, 2009


A vortex controlled diffuser has recently been reported [1], which attained high levels of pressure recovery within a short length. This diffuser has, however, achieved only a limited application because of its bleed-off requirements. The present work indicates a means by which this disadvantage can be overcome by using a hybrid arrangement of conventional and vortex controlled diffusers. The outcome was an efficient diffuser, half the length of the equivalent conical diffuser, and which would operate satisfactorily without either bleed-off or vanes projecting into the flow.

Copyright © 1981 by ASME
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