Motion of a viscoelastic micellar fluid around a cylinder: Flow and fracture

Joseph R. Gladden, Andrew Belmonte

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

We present an experimental study of the motion of a viscoelastic micellar fluid around a moving cylinder, which ranges from fluidlike flow to solidlike tearing and fracture, depending on the cylinder radius and velocity. The observation of crack propagation driven by the cylinder indicates an extremely low tear strength, approximately equal to the steady state surface tension of the fluid. At the highest speeds a driven crack is observed in front of the cylinder, propagating with a fluctuating speed equal on average to the cylinder speed, here as low as 5% of the elastic wave speed.

Original languageEnglish (US)
Article number224501
JournalPhysical Review Letters
Volume98
Issue number22
DOIs
StatePublished - May 29 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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