Incompressible Jet Mixing in Converging-Diverging Axisymmetric Ducts

[+] Author and Article Information
P. G. Hill

Gas Turbine Laboratory, Massachusetts Institute of Technology, Cambridge, Mass.

J. Basic Eng 89(1), 210-220 (Mar 01, 1967) (11 pages) doi:10.1115/1.3609555 History: Received June 09, 1966; Online November 03, 2011


A test has been made of the constant turbulent Reynolds number hypothesis for a turbulent jet flow in a converging-diverging axisymmetric tube. Using the free turbulent jet as the sole source of data for evaluation of the Reynolds number, and velocity shear distributions, the general ducted flow was predicted with the aid of appropriate similarity relations. Calculated results are compared with the extensive and consistent data of Helmbold; good agreement is observed. It is found that the methods of calculation employed can be considerably simplified without large effect on the calculated results. The existence and extent of zones of recirculation are also discussed.

Copyright © 1967 by ASME
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