Roughness-Induced Friction on Liquid Foams

Manon Marchand, Frédéric Restagno, Emmanuelle Rio, and François Boulogne
Phys. Rev. Lett. 124, 118003 – Published 17 March 2020
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Abstract

Complex liquids flow is known to be drastically affected by the roughness condition at the interfaces. We combined stresses measurements and observations of the flow during the motion of different rough surfaces in dry liquid foams. We visually show that three distinct friction regimes exist: slippage, stick-slip motion, and anchored soap films. Our stress measurements are validated for slippage and anchored regimes based on existing models, and we propose a leverage rule to describe the stresses during the stick-slip regime. We find that the occurrence of the stick-slip or anchored regimes is controlled by the roughness factor, defined as the ratio between the size of the surface asperities and the radius of curvature of the Plateau borders.

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  • Received 10 December 2019
  • Accepted 7 February 2020

DOI:https://doi.org/10.1103/PhysRevLett.124.118003

© 2020 American Physical Society

Physics Subject Headings (PhySH)

Fluid DynamicsPolymers & Soft Matter

Authors & Affiliations

Manon Marchand, Frédéric Restagno, Emmanuelle Rio, and François Boulogne*

  • Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France

  • *francois.boulogne@u-psud.fr

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Issue

Vol. 124, Iss. 11 — 20 March 2020

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