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Enhancing shear thickening

Yasaman Madraki1, Sarah Hormozi1, Guillaume Ovarlez2, Élisabeth Guazzelli3, and Olivier Pouliquen3

  • 1Department of Mechanical Engineering, Ohio University, Athens, Ohio 45701-2979, USA
  • 2University of Bordeaux, CNRS, Solvay, LOF, UMR 5258, 33608 Pessac, France
  • 3Aix Marseille Univ, CNRS, IUSTI, Marseille, France

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Phys. Rev. Fluids 2, 033301 – Published 13 March, 2017

DOI: https://doi.org/10.1103/PhysRevFluids.2.033301

Abstract

A cornstarch suspension is the quintessential particulate system that exhibits shear thickening. By adding large non-Brownian spheres to a cornstarch suspension, we show that shear thickening can be significantly enhanced. More precisely, the shear-thickening transition is found to be increasingly shifted to lower critical shear rates. This influence of the large particles on the discontinuous shear-thickening transition is shown to be more dramatic than that on the viscosity or the yield stress of the suspension.

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Phys. Rev. Fluids 2, 033301– Published 13 March, 2017
  • Received 21 October 2016
Article part of CHORUS

©2017 American Physical Society

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