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Three-Dimensional Free Jets

Published online by Cambridge University Press:  04 July 2016

N. Rajaratnam  and
K. Subramanya
N. Rajaratnam
Affiliation:
Dept of Civil Engineering, University of Alberta, Edmonton, Canada
K. Subramanya
Affiliation:
Dept of Civil Engineering, University of Alberta, Edmonton, Canada
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Extract

Fairly elegant semi-empirical theories are available for predicting the turbulent diffusion of axisymmetric and plane jets. However, there are relatively few investigations on the non-axisymmetric jets, herein denoted as three-dimensional jets. The extensive investigations conducted at the Polytechnic Institute of Brooklyn on three-dimensional jets have shown that the flow field is characterised by three distinct regions; the potential core, the characteristic decay (CD) region and the axisymmetric decay (AD) region. In the CD region the velocity profiles in the direction of the minor axis are similar but the maximum velocity decay curves are different for different shapes. In the AD region the flow characteristics are similar to that of an axisymmetric jet. Yevdjevich has recently conducted another investigation on rectangular jets.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 71 , Issue 684 , December 1967 , pp. 858 - 859
Copyright
Copyright © Royal Aeronautical Society 1967

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References

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