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|Title: ||Multiple coexisting states of a falling viscous thread|
|Authors: ||Habibi, Mehdi|
Ribe, Neil M.
|Keywords: ||free-surface flows|
liquid rope coiling
|Issue Date: ||16-Oct-2009|
|Abstract: ||This fluid dynamics video shows experiments in which a thin thread of viscous fluid (viscosity 950 cS) ejected at a rate 0.19 ml/s from a hole 2 mm in diameter falls a distance 14 cm onto a solid plate. The thread exhibits three different states that succeed each other in time in a random manner: (1) axisymmetric stagnation flow; (2) steady coiling; and (3) rotatory folding. Transitions among these states are caused by spontaneous finite-amplitude perturbations that travel down the thread.|
|Description: ||APS DFD 2009 Gallery of Fluid Motion|
|Appears in Collections:||Fluid Dynamics Videos|
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