Experimental observation of shear thickening oscillation

Shin Ichiro Nagahiro, Hiizu Nakanishi, Namiko Mitarai

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Abstract

We report experimental observations of the shear thickening oscillation, i.e. the spontaneous macroscopic oscillation in the shear flow of severe shear thickening fluid. Using a density-matched starch-water mixture, in the cylindrical shear flow of a few centimeters flow width, we observed that well-marked vibrations of frequency around 20 Hz appear via a Hopf bifurcation upon increasing externally applied shear stress. The parameter range and the frequency of the vibration are consistent with those expected by a simple phenomenological model of the dilatant fluid.

Original languageEnglish
Article number28002
JournalEPL
Volume104
Issue number2
DOIs
Publication statusPublished - Oct 1 2013

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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