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Similarity in the initial region of annular jets: three configurations

Published online by Cambridge University Press:  12 April 2006

N. W. M. Ko  and
W. T. Chan
N. W. M. Ko
Affiliation:
Department of Mechanical Engineering, University of Hong Kong
W. T. Chan
Affiliation:
Department of Mechanical Engineering, University of Hong Kong
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Abstract

This paper describes part of a detailed study of the initial region of three annular jets. The configurations are the basic one, without any bullet in the centre, and those with a conical and an elliptical bullet. From the mean velocity and turbulence intensity measurements the initial region can be divided into the initial merging, the intermediate and the fully merged zones. Within these three zones similarity of both the mean velocity and the turbulence intensity profiles has been found. The similarity curves are compared with those for a single jet.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 84 , Issue 4 , 27 February 1978 , pp. 641 - 656
Copyright
© 1978 Cambridge University Press

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