Physics – Fluid Dynamics
Scientific paper
2008-10-09
Physics
Fluid Dynamics
Abstract accompanying movie to the Gallery of Fluid Motion: APS-DFD 2008
Scientific paper
This fluid dynamics video shows drops of water being transported by a mean flow of oil, in a microchannel shaped as a logarithmic spiral. The channel shape means that the drops are submitted to an increasing shear and elongation as they flow nearer to the center of the spiral. A critical point is reached at which a long singular tail is observed behind the drops, indicating that the drops are accelerating. This is called "Tip streaming".
Baroud Charles N.
Molesin Simon
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