4.7 Article

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

Journal

JOURNAL OF FLUID MECHANICS
Volume 776, Issue -, Pages -

Publisher

CAMBRIDGE UNIV PRESS
DOI: 10.1017/jfm.2015.329

Keywords

low-Reynolds number flow; rheology; suspensions

Funding

  1. ANR projects [ANR-13-IS09-0005-01, ANR-11-LABX-0092, ANR-11-IDEX-0001-02]
  2. Etudes et Productions Schlumberger
  3. NSERC [PDF-439036-2013]
  4. Agence Nationale de la Recherche (ANR) [ANR-13-IS09-0005] Funding Source: Agence Nationale de la Recherche (ANR)

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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.

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