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Title: Multiple coexisting states of a falling viscous thread
Authors: Habibi, Mehdi
Rahmani, Yasser
Bonn, Daniel
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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habibi_dfd09_meeting.m4vfluid dynamics video25.49 MBM4v VideoView/Open
habibi_dfd09_website.mp4fluid dynamics video9.8 MBMPEGView/Open

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