A Performance Prediction Method for Unstalled, Two-Dimensional Diffusers

[+] Author and Article Information
L. R. Reneau

Lockheed Missiles and Space Co., Sunnyvale, Calif.

J. P. Johnston

Department of Mechanical Engineering, Stanford University, Stanford, Calif.

J. Basic Eng 89(3), 643-652 (Sep 01, 1967) (10 pages) doi:10.1115/1.3609675 History: Received June 22, 1966; Online November 03, 2011


A method based on turbulent boundary layer integral theory is presented for the prediction of performance in two-dimensional, straight-center-line diffusers which contain, at most, small amounts of stall. The method is shown to adequately predict experimental pressure recovery data from diffusers with very thin to moderately thick inlet boundary layers. An approximate method for prediction of the onset of severe stall in two-dimensional diffusers is presented, but the general problem of boundary layer separation prediction is not solved.

Copyright © 1967 by ASME
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