Abstract
This chapter is based on the paper by Baumann, Joseph, Mohr and Renardy [1992]. We present and interpret experiments in which vortex rings of one immiscible liquid are created in another from drops falling from rest under gravity. These rings are associated with circulations generated by viscosity and, unlike classical vortex rings which occur in miscible liquids at high Reynolds numbers, they can exist even at very low Reynolds numbers. Since the rings do not diffuse, they are well-defined. Nonetheless, there are many similarities in the dynamics of formation and flow of miscible and immiscible rings. We are going to identify parameters which appear to correlate our observations and to show photographs of some of the more interesting events we have seen.
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© 1993 Springer Science+Business Media New York
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Joseph, D.D., Renardy, Y.Y. (1993). Vortex Rings of One Fluid in Another in Free Fall. In: Fundamentals of Two-Fluid Dynamics. Interdisciplinary Applied Mathematics, vol 4. Springer, New York, NY. https://doi.org/10.1007/978-1-4615-7061-5_5
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DOI: https://doi.org/10.1007/978-1-4615-7061-5_5
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4615-7063-9
Online ISBN: 978-1-4615-7061-5
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