Two-Dimensional Flow With Standing Vortexes in Ducts and Diffusers

[+] Author and Article Information
Friedrich O. Ringleb

Naval Air Material Center, Naval Air Engineering Facility, Philadelphia, Pa.

J. Basic Eng 82(4), 921-927 (Dec 01, 1960) (7 pages) doi:10.1115/1.3662803 History: Received January 18, 1960; Online November 04, 2011


The conditions for the equilibrium of two vortexes in a two-dimensional flow through a duct or diffuser are derived. Potential-flow considerations and a few basic results from viscous-flow theory are used for the discussion of the role of cusps as separation control and trapping devices for standing vortexes. The investigations are applied to cusp diffusers especially with regard to the wind tunnel of the James Forrestal Research Center of Princeton University.

Copyright © 1960 by ASME
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