Relation between boundary slip mechanisms and waterlike fluid behavior

Patricia Ternes, Evy Salcedo, and Marcia C. Barbosa
Phys. Rev. E 97, 033104 – Published 12 March 2018

Abstract

The slip of a fluid layer in contact with a solid confining surface is investigated for different temperatures and densities using molecular dynamic simulations. We show that for an anomalous waterlike fluid the slip goes as follows: for low levels of shear, defect slip appears and is related to the particle exchange between the fluid layers; at high levels of shear, global slip occurs and is related to the homogeneous distribution of the fluid in the confining surfaces. The oscillations in the transition velocity from defect to global slip are shown to be associated with changes in the layering distribution in the anomalous fluid.

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  • Received 12 January 2018

DOI:https://doi.org/10.1103/PhysRevE.97.033104

©2018 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsFluid Dynamics

Authors & Affiliations

Patricia Ternes1,*, Evy Salcedo2, and Marcia C. Barbosa1

  • 1Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970 Porto Alegre, RS, Brazil
  • 2Coordenadoria Especial de Física, Química e Matemática, Universidade Federal de Santa Catarina, Rua Pedro João Pereira 150, 88905-120 Araranguá, SC, Brazil

  • *patricia.terdal@gmail.com

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Vol. 97, Iss. 3 — March 2018

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