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Rheology of dense suspensions of non-colloidal spheres in yield-stress fluids

Published online by Cambridge University Press:  02 July 2015

Simon Dagois-Bohy*
Affiliation:
Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille, France
Sarah Hormozi
Affiliation:
Department of Mechanical Engineering, Ohio University, Athens, OH 45701-2979, USA
Élisabeth Guazzelli
Affiliation:
Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille, France
Olivier Pouliquen
Affiliation:
Aix-Marseille Université, CNRS, IUSTI UMR 7343, 13453 Marseille, France
*
Email address for correspondence: simdagbo@gmail.com

Abstract

Pressure-imposed rheometry is used to study the rheological properties of suspensions of non-colloidal spheres in yield-stress fluids. Accurate measurements for both the shear stress and the particle normal stress are obtained in the dense regime. The rheological measurements are favourably compared with a model based on scaling arguments and homogenisation methods.

Type
Rapids
Copyright
© 2015 Cambridge University Press 

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