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arXiv · 2002.03907

Spreading of granular suspensions on a solid surface

Menghua Zhao·Alice Pelosse·Mathieu Oléron·Laurent Limat·Elisabeth Guazzelli·Matthieu Roché
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Abstract

We examine the spreading of a suspension of non-Brownian spheres suspended in a Newtonian liquid on a solid substrate. We show that the spreading dynamics is well described by the classical Cox-Voinov law provided the value of the fluid viscosity that arises in the capillary number of the problem is adjusted to a value that depends on particle size and volume fraction in a non-trivial way. We demonstrate that this behavior is a signature of the ability of the particles to approach the contact line close enough to affect dissipation.

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Menghua Zhao, Alice Pelosse, Mathieu Oléron, Laurent Limat, Elisabeth Guazzelli, Matthieu Roché. 2020-02-10. Spreading of granular suspensions on a solid surface. https://doi.org/10.1103/physrevresearch.2.022031

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