Abstract
WHEN a turbulent jet flows through an enveloping fluid, the interface breaks up into vortices. The development of such vortices for the flow of a confined jet issuing from a sluice-way and diffusing into water downstream has previously been described1. The vortices grow as they flow downstream, and eventually extend throughout the entire height of the circulation zone. The mixing produced by these vortices causes the jet to expand until its upper limit momentarily reaches the free surface, where it divides and a stagnation point develops.
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References
Naib, S. K. A., Nature, 210, 694 (1966).
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NAIB, S. Unsteadiness of the Circulation Pattern in a Confined Liquid Jet. Nature 212, 753–754 (1966). https://doi.org/10.1038/212753a0
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DOI: https://doi.org/10.1038/212753a0
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