Experimental study of effect of vaneless-diffuser diameter on diffuser performance

Guy R. Bradshaw, Eugene B. Laskin
naca-tn-1713
Oct 1948


For vaneless-diffuser diameters of 34, 27, 24, and 20 inches were studied by successively cutting down a 34-inch vaneless diffuser and running it in a variable-component rig with a commercial mixed-flow impeller to determine the variations in both compressor and diffuser efficiency with diffuser diameter.

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http://naca.central.cranfield.ac.uk/reports/1948/naca-tn-1713.pdf