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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 ,
Sarah Hormozi ,
Élisabeth Guazzelli  and
Olivier Pouliquen
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
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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.

JFM classification

Non-Newtonian Flows: Rheology Complex Fluids: Suspensions
Type
Rapids
Information
Journal of Fluid Mechanics , Volume 776 , 10 August 2015 , R2
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Copyright
© 2015 Cambridge University Press 

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