Prediction of Turbulent Jets in Coflowing and Quiescent Ambients

[+] Author and Article Information
I. K. Madni, R. H. Pletcher

Department of Mechanical Engineering and Engineering Research Institute, Iowa State University, Ames, Iowa

J. Fluids Eng 97(4), 558-564 (Dec 01, 1975) (7 pages) doi:10.1115/1.3448117 History: Received February 10, 1975; Online October 12, 2010


Some existing turbulence models for the round jet in coflowing and quiescent ambients are compared to experimental data, and some modifications are suggested and examined. A new model is proposed which results in consistently good predictions for a wide range of velocity ratios, including the important case of a jet discharging into an ambient at rest. The conservation equations of mass, momentum, and energy in differential form for the jet flow are solved numerically in the physical plane using an explicit difference scheme of the DuFort-Frankel type.

Copyright © 1975 by ASME
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