Enhancing Shear Thickening

ORAL

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 enhancement is found to be mainly controlled by the concentration of the large particles.

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Authors

  • Fatemeh Madraki

    Department of Mechanical Engineering, Ohio University, Athens, Ohio 45701-2979, USA

  • Sarah Hormozi

    Department of Mechanical Engineering, Ohio University, Athens, Ohio 45701-2979, USA, Ohio University, Mechanical Eng. Dept.,Ohio University, 251 Stocker, Athens, OH 45701, USA.

  • Guillaume Ovarlez

    University of Bordeaux, CNRS, Solvay, LOF, UMR 5258, 33608 Pessac, France, PLACAMAT, UMS3626-CNRS/University of Bordeaux, Pessac, 33608, France

  • Elisabeth Guazzelli

    Aix-Marseille Universite, CNRS, IUSTI UMR 7343, 13453 Marseille, France

  • Olivier Pouliquen

    Aix-Marseille Universite, CNRS, IUSTI UMR 7343, 13453 Marseille, France