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Observations of a liquid-into-liquid jet

Published online by Cambridge University Press:  28 March 2006

A. J. Reynolds
A. J. Reynolds
Affiliation:
Cavendish Laboratory, Cambridge
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Abstract

A jet of dyed water is directed into a large tank of water. As the flow rate is increased several successive modes of breakdown of the dyed column are observed:

  1. tiny puffs of dye near the nozzle;

  2. axisymmetric condensations well away from the nozzle;

  3. sinuous undulations of long wave length far from the nozzle;

  4. formation of foot-shaped pockets of dye;

  5. confused breakup near the nozzle with rapid spread of dye.

The length of nearly rectilinear jet increases through the stages (a), (b) and (c). The mode (d) is an alternative to (c), occurring nearer the nozzle and leaving a shorter length of straight jet. Above a Reynolds number of about 300, only the confused breakup (e) is found.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 14 , Issue 4 , December 1962 , pp. 552 - 556
Copyright
© 1962 Cambridge University Press

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References

Villu, A. 1960 Preliminary Report of Massachusetts Institute of Technology (Dept. Aeronautics and Astronautics) for NASA. Grant No. NsG-31-60.
Schlichting, H. 1955 Boundary Layer Theory. London: Pergamon Press.