Evolution of the effective nozzle diameter in the buoyancy free development of turbulent jets with variable density

Evolution of the effective nozzle diameter in the buoyancy free development of turbulent jets...  Decay laws in the initial, non buoyant region of round, turbulent, variable density jets can be derived from dimensional similarity considerations. This paper presents the concept of normalized effective diameter. In the case of turbulent jets issuing into a coflow air stream (initial density ratio varying from 0.07 to 1), this quantity is experimentally derived from measurements of mean density and velocity and is found to follow a unique exponential decay. Results are also presented in terms of global force of the nozzle fluid. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Evolution of the effective nozzle diameter in the buoyancy free development of turbulent jets with variable density

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Publisher
Springer-Verlag
Copyright
Copyright © 1998 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s003480050231
Publisher site
See Article on Publisher Site

Abstract

 Decay laws in the initial, non buoyant region of round, turbulent, variable density jets can be derived from dimensional similarity considerations. This paper presents the concept of normalized effective diameter. In the case of turbulent jets issuing into a coflow air stream (initial density ratio varying from 0.07 to 1), this quantity is experimentally derived from measurements of mean density and velocity and is found to follow a unique exponential decay. Results are also presented in terms of global force of the nozzle fluid.

Journal

Experiments in FluidsSpringer Journals

Published: Aug 19, 1998

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