Phys. Rev. E 70, 056701 (2004) - Apparent slip over a solid-liquid interface with a no-slip boundary condition

Apparent slip over a solid-liquid interface with a no-slip boundary condition

Junfeng Zhang and Daniel Y. Kwok

Phys. Rev. E 70, 056701 – Published 5 November 2004

Abstract

We studied solid-liquid slip by a mean-field free-energy lattice Boltzmann approach recently proposed [Phys. Rev. E 69, 032602 (2004)]. With a general bounce-back no-slip boundary condition applied to the interface, liquid slip was observed because of the specific solid-fluid interactions. Our work relates interfacial slip to a more realistic solid-fluid interaction and hence contact angle. The kinetic nature of LBM is manifested in this interfacial study. A small negative slip length can also be produced with a stronger solid-fluid attraction.

Received 17 March 2004

DOI:https://doi.org/10.1103/PhysRevE.70.056701

©2004 American Physical Society

Authors & Affiliations

Junfeng Zhang and Daniel Y. Kwok^*

Nanoscale Technology and Engineering Laboratory, Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2G8

^*Author to whom correspondence should be addressed. FAX:(780) 492-2200; electronic address: daniel.y.kwok@ualberta.ca

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Issue

Vol. 70, Iss. 5 — November 2004

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